How to Keep Marine Toilets Smelling Fresh

We have found that many people ask the following question:

My marine toilet works, but smells, what’s wrong with it and how do I get rid of the odors?

The most common reason for odors is:

Foul marina water being drawn into the toilet bowl from outside. Adding a Raritan K.O.2 Kit to your installation and using Raritan K.O. help keep the odor level down.

Raritan toilets using on board pressurized fresh water have no odors.

Improper discharge hose is being used and the hose material has become contaminated resulting in odor permeation. Replace the hose with thick walled sanitation hose that resists odor permeation such as Raritan SaniFlex #SFH.

Improper routing of discharge hose. Horizontal runs and dips or valleys where raw sewage may stand must be avoided. Even the best sanitation hose will not last long in these cases. Route hoses to gravitate downhill and use sweep ells rather than 90″ fittings to make bends if needed. Loops in the hose must be properly vented.

No water trap in the bottom of the toilet bowl. Adding a vented loop in the discharge hose will allow a stand of water to exist in the section of hose from the toilet to the vented loop. This also ensures that a certain amount of water remains in the bowl after each flush. The height of the loop will determine how much water will remain in the bowl. Sewage odor/gas would have to be pressurized to force it through the water seal created by the addition of the vented loop.

Eel grass, other forms of marine life or vegetation which are drawn into the toilet’s flush water may have become trapped in the rim of the bowl. This can produce a sulfurous malodor (i.e.: rotten egg smell) as this matter decays. If this occurs, the bowl must be flushed out under dock side pressure while using a probe inserted into the bowl rim rinsing holes to free any lodged debris. All seawater flush toilets must have an inline strainer installed in the intake hose to prevent this from happening. Fresh water toilets such as Fresh Head or pressurized water electric toilets do not have odors by avoiding sea water.

For more details on how to keep your marine toilet smelling fresh please visit us at Raritan Engineering;

Raritan Crown Head Pump Assembly

By Raritan Engineering

The Crown Head is a powerful centrifugal macerating toilet that thoroughly breaks down waste in preparation for treatment or holding and requires little maintenance. It can be ordered with a 90 degree or a straight discharge fitting, a white marine-size bowl or household-style bowl available in either white or almond.


Before starting installation be sure that all parts that were ordered with your model have been included: The complete Crown Head unit includes:

Bowl, seat and cover, motor assembly, shroud assembly, siphon and check valve assembly, Concentrate tank, 2 oz. (59ml) of C.P., two mounting strips and an owner’s manual.

Below water line installations must include vented loops. The top of the loop must be above the waterline at maximum heel to prevent siphoning.

At Raritan, we offer dependability where it counts.

Be Sure To Get Your Crown Head Pump Assembly at Raritan Engineering.


Raritan Marine Toilet Systems Experts Discuss the Importance of Keeping Your Hull Clean

Raritan Engineering your marine toilet systems specialists would like to share with you this week some ideas for how to sodablast your boat’s hull.

Quick. What’s your least favorite boat maintenance project? Cleaning the bilge? Changing the engine oil?  … How about stripping off several years worth of bottom paint?

After that experience, Ralph decided to look into sodablasting, featured in the October 2011 issue of Practical Sailor. One of the chief complaints you hear about any for-hire boat work is the exorbitant price charged, but once you start to do the math—and start thinking about your health—a $1,500 fore-hire sodablasting job doesn’t seem so indulgent.  

One of the biggest mistakes an owner makes when estimating how much time it takes to strip a hull is to peck away at one of the easy spots where the paint is peeling and then assume the rest of the coating will come off just as easily. Ralph gives a more realistic formula for estimating the amount of time a stripping project will take.

Now that you’ve got your total area, you can figure out the amount of actual time it will take you to do the job. Start your stopwatch and attack one square-foot of an “easy” section. Do the same to a patch where the paint is well adhered. 

Here’s an example: Your boat has a 30-foot waterline, a 6-foot draft, a waterline beam of 10 feet, and is a medium-displacement vessel. Our fuzzy math for a medium-displacement sailboat  

WSA = Lwl x (Bwl + T)

says you’ve got 360 square feet of paint to strip: 30 x (10 + 6) (.75) = 360.

Marine Toilet Systems Suppliers at Raritan Share Excellent Hull Cleaning Ideas With You

Your marine toilet systems experts give information regarding how next comes the all-important apportionment of “easy” versus difficult paint removal. In this case, 85 percent of the hull is tough stuff, taking four minutes per square foot to strip: 0.85 x 360 x 4 = 1,224 minutes of backbreaking work. 

Now, how much is your time worth? And don’t forget the money you’ll be spending on scrapers, chemical strippers (if you use them), sand paper, etc. As much as I like to do my own boat work, this is one for-hire job that is worth considering.

You have a thick layer of antifouling paint on the bottom of your boat. It’s rough and worn around the edges, so you’d like to get rid of it and have a nice smooth bottom that will help you sail faster. 

The “soda” in soda blasting is sodium bicarbonate, which is similar to the baking soda you buy for cooking at home, but crystallized so it can be used in the rain. 

Because the soda breaks upon impact into micro-fragments, it doesn’t damage substrate the way sand blasting can. All it does is peel off the paint. Soda blasting can also be done on cars, masonry and rusted metal parts.

A professional blaster will roll in with a large truck, completely mask off the boat and the area beneath it, and then set to work. According to Armstrong, it takes about a day to set up the containment area for an average boat. “The soda blasting goes really quickly, once we have everything set up,” he says. “For most boats, the entire process takes one to two days and most of that time is the setup.”

Armstrong recommends that the hull also is lightly sanded after blasting to remove any remaining soda residue or paint that might have been only partially blasted off.

How much does it cost? According to Armstrong, the price varies depending on the length of the vessel. For example, a 30-foot boat might be around $45 per foot, while a 100-foot boat would be around $130 per foot because of the increased beam. “Our average job works out around $35 to $45 per foot,” he says.

When the barrier coat has dried and hardened, you can apply bottom paint in the color of your choice. Then you can launch and go sailing, safe in the knowledge that your boat is protected in the best way possible.

Click here and see how we at Raritan Engineering always take care of your marine sanitation supply needs.

via Making a Case for Sodablasting Your Hull

via How To: Soda Blast Your Boat

Our Marine Toilets Dept Discusses: Fishing Safely Near Breakers, Boating Tips

Image result for fishing safely near breakers

Your marine toilets experts here at Raritan Engineering know that saltwater game fish often hunt where the ocean surge meets the shore.

The surging turbulence where ocean waves careen into the shallows creates rich hunting areas for game fish such as calico bass, redfish, roosterfish, striped bass and tarpon. Your marine toilets specialists say that despite the dangers, boating anglers have found methods to get close and pull fish from under the menacing waves and foam. I talked to a few veteran anglers to glean six principles for fishing successfully and safely near the pounding surf.

If in Doubt, Stay Out

Stay away from the breaking waves when conditions are too gnarly. “If the swells are big, I steer clear of shore rocks,” says Capt. Benny Florentino, a guide and tournament angler who regularly braves Pacific swells in pursuit of calico bass ranging up to 9 pounds in the rocky shallows off Southern California.

Capt. Greg Hildreth, who guides guests to big redfish and tarpon amid the wave-swept shoals of the Georgia coast aboard his 20-foot Action Craft bay boat, echoes that sentiment. “If you see big breakers blowing through — any thing bigger than 4 feet — it’s time to go elsewhere.”

Despite being on opposite coasts, both Florentino and Hildreth believe in observing each spot from a safe distance before moving in. “I might watch a spot for 15 or 20 minutes to see what the wave patterns are like,” says Florentino. “This gives me an idea of how to fish it safely on any given day, but some days I just drive away, because no fish is worth risking lives.”

Breaking swells can quickly turn shore waters into danger zones for boating anglers.

Plan an Exit Strategy

Even after evaluating a spot, a set of big waves can still roll in unexpectedly. So plan in advance how you’re going to escape. Running straight out, trying to get over a wave before it breaks can lead to catastrophe, according to Hildreth, who anchors his boat outside the breakers to fish.

“If I see a rogue swell coming, a wave that might break early, I crank up the motor and attack the swell at an angle,” he says. “I don’t even bring in the anchor, because there’s no time, but rather pull it behind as we’re heading out.” In quartering the wave, the boat is less likely to get pitched over backward or crash down hard on the backside.

“It’s often better to run in a bit, and then turn and aim for the ‘shoulder’ of the wave where the water is deeper and the wave’s not breaking,” explains Erik Landesfeind, who fishes for California’s calico bass from an 18-foot Blazer Bay boat.

Your marine toilets analyst suggest that when fishing on the inshore side of a “boiler” rock or shoal, the best tactic is sometimes to do nothing. “Let the wave break outside of you and disperse its energy,” Landesfeind advises. “Then all you have to deal with is the more-gentle shore wash.”

Keep the Big Motor Running

Some anglers like to work jetties and shore rocks with a bow-mounted trolling motor. Yet, when fishing around breakers, you should leave the trolling motor up and keep the big motor running, if you’re not anchoring, according to Landesfeind. “A lot of young guys charge in to fish, and drop in their trolling motor and turn off the big motor, and that’s a big mistake,” he says.

It’s also imperative to keep the bow pointed away from shore, sometimes backing into a spot, so the boat tends to ride up and over an incoming swell, and is always headed in the right direction if you have to move out quickly. By all means, avoid leaving the boat sideways to a breaking wave, a scenario that can lead to capsizing.

Veteran captains often fish from the helm, so they’re ready to pilot the boat to safety at a moment’s notice. All have learned from close calls in the past.

Fish close to rocky outcroppings only when sea conditions allow you to do so safely.

Buddy Up

It’s a bad idea to fish dangerous areas solo; at least one person needs to be focused on boat handling. “When we’re fishing close to shore, I’m 90 percent skipper, constantly looking over my shoulder,” Landesfeind explains. “That allows the other guy to be 90 percent angler, focusing on likely pockets and ripping off long casts.”

This division of responsibilities is critical because it’s easy for an angler to become fixated on fishing, particularly when trying to land a fish. Having a skipper on alert helps prevent lapses of awareness “While my guests are fishing, I’m always keeping my eyes peeled for danger,” says Hildreth.

Always remain alert to possible dangers when fishing around jetties and breakwaters.


Effective communication between the angler and crew keeps everyone alert and helps prevent injuries. It starts with encouraging crew to speak up if they see a big wave from a distance. But the skipper also needs to be clear when it’s time to run for safety.

“When I shout, ‘We’re going,” that means sit down and hold onto something,” says Capt. Jimmy Decker, a guide and tournament angler who fishes Southern California shores from an Everglades 243 bay boat with a 250 hp Suzuki outboard. Often, there’s no time to reel in or move about before the skipper accelerates; hence the need to get low and find a handle.

Hildreth, who likes to drift baits back into the surf zone, instructs his guests to remain seated when they are not fighting a fish, as the waves off the Georgia coast can jostle them around at any time. “Plus, that way, they’re already seated if I have to punch out in a hurry,” he adds.

Wear a Life Jacket

Among the anglers I interviewed, only one professed to wearing a life jacket while fishing in risky shore areas, yet all admitted that it was a good idea. Suspender-style inflatable life jackets allow for great mobility while fishing, and models that automatically inflate upon contact with water ensure that an angler will remain afloat, even if rendered unconscious — a critical safety feature for all boating anglers, whether fishing in the danger zone or staying well offshore.

Click here and see how Raritan Engineering always has more information regarding marine toilets and all of your marine supply needs.

via Fishing Safely Near Breakers, Boating Tips

via Photo

Your Electric Toilets Specialists Discuss the Pros of Buying Your First Atlantes Freedom Marine Toilet

What is Vortex-Vac Technology?

There are several ways to create a vacuum in a toilet. A traditional vacuum toilet utilizes a stored vacuum created by a positive displacement pump. Such systems require vacuum tanks and external pumps and controls.


Raritan’s Vortex-Vac creates its vacuum by using the vortex pump mounted inside the bowl. This creates an on-demand instantaneous vacuum eliminating the need for external vacuum pumps, tanks and other mechanical components that can fail. This makes a system that is easier to install with significant savings.

Our Vortex-Vac flushing technology is also the quietest and most efficient in its class. Its low water usage also extends the useful capacity of your holding tank.

Contact Raritan Engineering at and get more information and assistance regarding the Atlantes Freedom Marine Toilet.


Your Boat Toilets Experts Discuss Navigation Control

Raritan Engineering Company your boat toilets analysts would like to share with you these topics we thought would be of interest to you this month regarding how easy it is to do your own marine charting.

Your boat toilets experts know that the latest enhancement to electronic charting technology gives boaters the ability to instantly create their own high-resolution marine charts — cartography with more detail and up-to-date depth data than anything you can buy off the shelf. This is real-time charting that you can utilize immediately and in the future.

Humminbird AutoChart Live

Activating live-charting functions is as easy as pressing a few buttons on the touchscreen menu of your compatible plotter or fish-finder system.

Humminbird’s AutoChart Live and Garmin’s Quickdraw Contours are free. An ­annual ­subscription to the Navionics Freshest Data club is needed to use SonarChart Live with a Raymarine plotter.

Garmin Quickdraw Contours

The technology can save you money. “Since you’re adding new HD chart data all the time, you don’t have to buy updated chart cards as often,” says David Dunn, senior manager for marine sales and marketing for Garmin.

Go to and see how you can always find more information on boat toilets at Raritan Engineering.

Real-time charting systems work with any networked fish finder, such as a conventional 50/200 kHz system, chirp fish finder, or scanning sonar.

The Quickdraw Community builds on the success of the company’s Quickdraw Contours software feature – a free, easy-to-use tool that lets mariners instantly create personalized HD maps with 1-foot contours on any body of water – allowing users to easily and quickly share and upload the best data available.

“Garmin customers have been collecting Quickdraw Contours mapping and depth data on their devices since the free software feature became available earlier this year, and now they have a way to easily share that data with others,” said Dan Bartel, Garmin vice president of worldwide sales.

Creating Quickdraw Contours data is powerfully simple. Once it’s turned on, users will instantly see contours with labels generated right on the screen as the boat moves – unlike competitor products, there’s no waiting around or sending the files in for remote processing, nor is there a fee to keep the data private or to share it with others.

The collected data can be stored on any off-the-shelf SD or microSDTM card, as well as existing Garmin BlueChart® g2, BlueChart g2 Vision® and LakeVü HD Ultra cards.

Data can be uploaded through a “Marine Profile” in Garmin Connect, and once uploaded, will typically be available on the web for download within 24 hours. With the intuitive map interface, users can easily locate and see the data shared by other users within the community overlaid on the applicable body of water.

The Garmin Quickdraw Community on Garmin Connect is available now at Quickdraw Contours comes standard on all echoMAP CHIRP products, and is available as a free software update for all other echoMAP and many GPSMAP series products.

Garmin Quickdraw Sharing

Recently, Garmin was named Manufacturer of the Year and received the honor of being the most recognized company in the marine electronics field by the National Marine Electronics Association (NMEA).

For decades, Garmin has pioneered new GPS navigation and wireless devices and applications that are designed for people who live an active lifestyle. Garmin serves five primary business units, including automotive, aviation, fitness, marine, and outdoor recreation.

Click here and see how Raritan Engineering is always the leader in information regarding boat toilets and other marine products.

via Real-Time Marine Charting


Macerating Toilets vs. Vacuum Marine Toilets Part 2

Macerating Toilets Prevent Odors From Sewage Tank Coming Back Thru Toilet Bowl

All plumbing code for house requires a J trap under the toilet to prevent gases from sewage main to come back thru toilet. Boat building industry has no such requirements.

Vacuum toilets have no water seal. It mostly depends on vacuum (negative pressure) to prevent gases/odors coming back to toilet. In case of vacuum pump being turned off or not working, there is a direct connection between holding tank and toilet without any water seal. There is a valve between hose and toilet bowl and seal on the valve compromised with loss of vacuum.

Macerating toilet, with vented loop has a water seal just like home and seal is reliable even during short term and long term storage.

Low noise

There is a myth that macerating toilets are noisy. Myth has been established by use of rubber impeller in older design macerators. Even macerators to empty out holding tanks and fish boxes use rubber impeller and are noisy.

However almost all manufactures of macerating toilets use centrifugal design for discharge pump. These designs are quieter and make only gurgling sound when runs out of water.

Vacuum toilets are famous for load popping noise. Some customers have described this noise as bullet shooting thru pipe. There are several You Tube videos making fun of vacuum toilet noise on web.

All vacuum toilets and some macerating toilets Marine Toilet require pressurized water for flush water. User should also consider noise generated by diaphragm pump for pressurized water due to toilet system.

Minimum water consumption

It is true that vacuum technique requires less water to evacuate the bowl compared to older style macerator toilets. However water needed to rinse the bowl should also be considered. New control strategies to turn discharge pump and inlet flush water as needed has reduced water consumption in macerating toilets to as low as vacuum toilets.

Minimum power consumption

Power used is measured by amps multiplied by time pump is on.

Vacuum toilet, for example may only draw 6amps. Considering that it runs for 45 seconds, power draw is equal to 6 x 45 =270 amps-sec.

A macerator pump draws 10 amps for 10 seconds. Power draw is 10 x 10 = 100 amps-sec.

Both cases do not consider power required to maintain pressurized water.

Macerator equipped with seawater pump may have a power draw of 18 x 10 = 180 amps-sec, still lower than vacuum toilets.


Vacuum toilet has several components to the system: Toilet, Vacuum generator and holding tank. Components have to be plumbed with leak free joints. There are limitations as to how high vacuum generator can be from the toilet. For boat builders installation requires careful planning. For aftermarket installation a factory certified installer is needed.

Macerator toilets only require installation of one component. Toilet itself is self contained with pumps and control. Only two hoses, discharge and inlet has to be plumbed to toilet. Wiring is also simplified by pre wiring all controls at factory. User only needs to connect to positive and negative at the toilet. Most macerating toilets can be installed by do it yourselfers.


Vacuum toilets function depends on vacuum switch reliability, valve seals, and leaks. Finding a vacuum leak could be a difficult task. Most problems on vacuum system may require a visit from certified technician.

Macerating toilets requires troubleshooting on control. Replacing component of control is easy. Discharge pumps are reliable and seldom needs maintenance.

Visit us at: for more details on marine products.


Marine Toilet 9aN6a4

Millville, New Jersey based marine products company, Raritan Engineering, has produced a marine toilet that has taken the pleasure boating world by storm. It remains the top choice for the marine industry and has been selected as the Best Choice by Practical Sailor in recent tests. The toilet comes in a wide selection of sizes and shapes as well as control options. Users have the option of a push button switch or an electronic switch. It offers a quiet flush, something that many feel is its best feature.

Melanie Simpson of Los Angeles says, “I love that it’s quiet. It’s an inexpensive toilet to begin with, and the quiet flush feature is simply the best.” Spokesperson for Raritan, Kim Shinn, states, “We’ve also made it eco-friendly. Users can flush their marine toilet with seawater, so they’re saving their onboard water for other uses.”

The full lineup of features can be viewed at Tyler Jenkins of Miami, FL, is a fan of the toilet. He says, “It’s much more elegant than others that I’ve looked at. This one looks like it would belong in a mansion somewhere, which my wife loves. Plus, it costs less to operate it, which I love.”

Raritan offers a variety of marine products, which can be viewed at The company’s pleasure boat products, which include toilets, icemakers, water heaters and waste treatment systems, are used by boaters all over the world. The company strives to provide environmentally friendly products that protect both the boater’s bank account and sea life.

Their new marine toilet is the first in the industry to offer a low water usage feature, as well as a one piece china bowl, and the seawater flush option. The “A” SeaFresh option allows boaters to switch between fresh water or sea water for flushing. It also features a compact installation and an optional lock out feature for when the tank is full. Empty only features allow the bowl to be emptied using no water whatsoever. More information about the newly released marine toilet and its various features can be viewed at

Via: Raritan Engineering’s Marine Toilets Selected Best Choice By Practical Sailor

Comparison of Macerating Toilets vs. Vacuum Marine Toilets

Macerating Toilets vs. Vacuum Marine Toiltes

There are several beliefs in marine products market about vacuum and Macerating Toilets. Some of these beliefs are true and some are myth.

Let us look at the how both technique satisfy basic toilet engineering functions:

Evacuation of all solids and liquid in one flush:

Vacuum toilet: Stored vacuum is applied to the bowl by opening a valve by paddle or electric. Pressure differential between atmosphere and vacuum pushes water and solids towards the cavity behind the valve. Bowl evacuates quickly in 2 to 3 seconds. As soon as air enters the bowl throat, vacuum drops rapidly. This evacuation technique make a loud noise associated with sudden pressure changes and reduced pipe sizes.

When user closes the valve, suction of the diaphragm vacuum pump is applied to the content of the cavity below valve. Solids and water and air start to move towards pump thru long hose between bowl and pump.

Pressure differential between atmosphere and vacuum accelerate water and solids during initial application of vacuum. Water and air move more rapidly than solids. In order to further accelerate water and solids pipe size is reduced after valve cavity. This sudden change in volume causes more velocity for water and solids and some breakdown of solid from bigger chunk to smaller chunk. After the valve is closed, suction of the vacuum pump moves air and water towards the pump faster than solids. Hence due to lack of positive pressure and water, there is a tendency for solids to splatter on the walls of hose and stay there till next flush.

Once suction of the pump had displaced all the air from hose and valve cavity to builds a preset vacuum level, pumps shuts off. This means pumps continue to run for 45 to 60 seconds after toilet use with typical diaphragm noise. If there is any slight leak in the hose connection or debris caught between valve seat and bowl throat, pump will turn on itself as vacuum drops. This may be an annoying if it happens in the night time.

Due to vacuum, spattered sewage on the hose wall is decomposing under anaerobic environment. Anaerobic odors include a wide range of compounds, most notoriously the reduced sulfur compounds (e.g. hydrogen sulfide, dimethyl sulfide, dimethyl disulfide, and methanethiol), volatile fatty acids, aromatic compounds and amines. Since system is under vacuum, it is unlikely that these odor producing gases escape thru hose. However these odors may be a problem at discharge side of the vacuum pump or during the flush cycle when vacuum level drops to almost zero. Due to notorious sulfur odors, some manufacturers only recommend special odor resistance hose for their vacuum system, increasing cost.

Macerating Toilet: Suction of the pump begins evacuation of bowl. Since pump is normally flooded with water at the beginning of the cycle, suction is powerful and draws solids and water from bowl cavity similar to vacuum toilet without loud popping noise. Most of the Macerating Toilets on the market are centrifugal pumps hence runs much quite than rubber impeller type. There is some gurgling noise similar to house toilets at the end of evacuation.

Suction of the pump is continuous and does not drops as stored vacuum does. Solids are macerated into very fine particles and send thru discharge at much higher velocity than vacuum toilet. Also since particles are smaller and have water as carrier, sewage move further into hose as compared to vacuum

End of the cycle pump stops, noise stops. There is no mysterious running of pump due to leaks or lake of vacuum. Power draw is measure by amps multiply by time. The macerator pump may draw more amps but draws less power compared to vacuum pumps.

Small macerated waste in the hose decomposes in aerobic environment. Aerobic byproducts of gases are odorless co2 and water. This means that a good quality rubber hose is all needed for system, no special odor resistance expensive hose is required.

The macerator pump eliminates waste clog in the hose or holding tank system as well as rinsing of bowl surfaces to remove all stains.

Part 2 of “Comparison of Macerating Toilets vs. Vacuum Marine Toilets” will be coming up soon!

Visit us at: for more details on marine products.

Buy a Marine Toilet-Raritan Engineering

Things to Consider

Marine Sanitation Devices (MSDs) and Waste Treatment Systems – Any boat with an installed marine toilet must have either a Type I MSD which treats the waste and makes it safe for overboard discharge, a Type II MSD used for the same purpose as a Type I but treats to higher standard and is typically designed for vessels over 65′ or a holding tank Type III MSD. All waste water inside the three mile limit requires treatment or holding of the waste. A complete list of Federal No Discharge Zones can be found on the EPA web site.

Power Consumption – When choosing a marine toilet, remember to look at overall power consumption. Many manufacturers make claims that their units draw very low amps. A low amp draw for a long period of time means overall consumption may be higher than a unit that draws more amps.

Water Use – Very low water use normally equates to poor performance when removing anything other than liquid from the bowl. The easier it is for people to use your boat toilets means the less trouble you will have with it.

To view our complete line of Marine Hardware such as where to buy a Marine Toilet-Boat Toilets as well as obtain installation and servicing guides: visit | 1-856-825-4900 |

To see more info on marine toilets and marine hardware visit our channel:
Visit us on