Products sold for marine holding tank treatment and odor control are one of following types:

  1. Chemical based products has one of the most common actives ingredient as formaldehyde or glutaraldehyde or quaternary ammonium compounds. Some of them claim to be biodegradable but they are not environmentally friendly.
  1. Enzyme based product uses specific enzyme. Because enzyme are typically specifics to a particular a substrate, they do not breakdown all matters in sewage and requires frequent use to keep supplying catalyst.
  1. Nitrate type add nitrates to tank which help release oxygen from organic matters to keep decomposition process aerobic. Requires frequent use to keep supplying nitrate.
  1. Bio-system are based on spore or bacteria that multiply themselves once organic matter is available as food. Unlike enzyme they can adopt to varying matters like sewage or toilet paper or oils and can survive some adverse condition of chemical or temperature. K.O.( Kill Odors) and C.P. (Clean Potties) by Raritan  are bio systems.

What is Spore?

A cell made by some bacteria that is like a seed and can produce a new bacteria when organic food is available. It a dormant bacteria that comes alive when exposed to organic matter and can multiply itself.

What is Enzyme?

An enzyme is a protein that acts as a catalyst. The enzyme is responsible for accelerating the rate of a reaction in which various substrates are converted to products through the formation of an enzyme-substrate complex. Enzyme are not bacteria and cannot multiply itself.

How K.O. and C.P. works:

 K.O. (Kill Odors) and C.P.( Clean Potties)  contains multiple spore blend concentrate specifically formulated for use in a broad range of applications including the maintenance of sewage lines, improving waste degradation in holding tank and odor control.

In their natural environment, bacteria produce hundreds of enzymes in response to the organics present in their environment. They produce extracellular enzymes that break down proteins, starches, fats, oils, greases and toilet tissue into smaller particles outside the bacterial cell.

The bacteria then transport the smaller particles across their cell membrane for use as an energy source and for building of new cellular components. The bacteria detect the organics present as potential food and produce specific enzymes to breakdown these organics – it is a very efficient system.

Sewage discharge lines from toilet and holding tank systems are nutrient rich systems for bacteria. Although many bacteria can utilize these organics as food sources, it is the bacteria with the most rapid production of these key enzymes that provide the most dramatic effects.

The microbial consortium in our product produces key extracellular enzymes including amylase, cellulase, lipase and protease for fast and effective degradation of organics.

Marine Holding Tank Odor Tech Tips:

In order for K.O. to be effective we must remember these three important factors:

  • DON’T KILL IT! As discussed, KO is a live bacteria and we must not destroy it. Using chemical bowl cleaners, pine oil, alcohol or bleach based products will terminate the bacteria we are trying to grow and render KO ineffective.  When it comes time to clean the head, stick to our Cleans Potties product.  It has no chemical properties, smells great is safe for any head and holding tank system.
  • MORE OXYGEN! For KO to be most effective, it needs air.  Single, undersized vents restrict the amount of oxygen to the tank and limits its ability to thrive.  Vent sizes should be at least ¾” and if possible, add a second vent to help with cross ventilation.  If vent filters are installed, we suggest they be removed.  While this may sound counter intuitive to eliminating odor, the more oxygen the better.
  • FEED IT! Like all living things, it needs food to grow.  Holding tanks are there for a reason, don’t be afraid to use them!

Getting started:

The best practice when using K.O. for the first time is to thoroughly clean and rinse the holding tank after pump out.  It is important to ensure any residual chemical is removed from the start.  Next, flush 4 ounces per 25 gallon of holding tank capacity directly into the head.  Keep in mind the object is to get the bacterial process started in the holding tank.  If the first flush doesn’t make it to the holding tank, flush the head until it does.  That’s it!  Repeat after each pump out and enjoy your odor free system!


Do not store in direct sunlight or in your car.

Do not store below 40 degrees F.

While our K.O. product does not expire, it can become less effective over time.  We suggest you keep your supply to under one year.

DO NOT use in combination with any other products other than our Cleans Potties Product.

Our Cleans Potties product is the only recommended bowl cleaner for Raritan heads and Waste Treatment systems.

Your Marine Parts Specialists Help You Get Through Unexpected Emergencies
Raritan Engineering Company your marine parts professionals would like to share with you these topics we thought would be of interest to you this month regarding how to choose the right type of distress signal for you to use.
Your marine parts analysts know that working at sea might lead to a situation wherein an emergency arises requiring the assistance of another vessel or that of shore authorities. In the off chance that it does lead to this, one must use whatever is available at hand to ensure that the safety of life is not compromised.

For the purpose of clarity with regard to this article, let us classify the marine distress signals under two sections:

1) Pyrotechnic Signals and,

2) Non-Pyrotechnic Signals

Pyrotechnic Signals

These are the means capable of undergoing self-contained and self-sustained exothermic chemical reactions for the production of heat, light, gas, smoke and/or sound.

Non-Pyrotechnic Signaling

As opposed to pyrotechnic signaling, these are the methods used without the necessity of an exothermic reaction to attract attention at the time of distress. Following are the means of non pyrotechnic signaling used onboard ships:

1. Orange Signal Flag: Listed under the Annex IV of the IMO International Regulations For Preventing Collisions At Sea, this signal consists of a square flag which has above or below it a ball or any other object that resembles a ball.

2. Marker Dyes: In accordance with the Annex IV as mentioned above, a dye marker may be used for the purposes of distress signaling.

Find the marine parts you need and answers to all your marine parts questions at Raritan Engineering.

3. SOS: The universally known SOS as per the Morse Code which basically is the most widely known way to communicate distress.

4. Radio Signals: As part of the GMDSS, radio signaling is a method of communicating distress at sea. A distress alert may be sent by the Digital Selective Calling methods transmitted on the VHF channel 70 or the following MF/HF frequencies:

  • 5 kHZ
  • 5 kHZ
  • 5 kHZ
  • 6312 kHZ
  • 12577 kHZ
  • 5 kHZ

5. Mirrors: Better known as a Heliograph, a mirror might be used while onboard and mostly on a survival craft to reflect the sunshine towards the entity that one needs to attract the attention of.

6. Continuous sounding on the fog signaling apparatus onboard is a way to communicate distress

7. When the word “Mayday” is communicated verbally via radiotelephony, it indicates distress

8. As per the International Code of Signals (INTERCO), the flag NC indicates distress

9. Slowly and repeatedly raising and lowering arms outstretched to each side indicates distress

10. A ship to shore distress alert which is transmitted by the ship’s satellite communication system (INMARSAT) or any other mobile satellite service also termed as the ship earth station.

11. Signals transmitted by the Emergency Position Indicating Radio Beacon (EPIRB) indicate distress

12. Signals transmitted by the Search and Rescue Radar Transponder (SART) also indicate distress

The INTERCO and the IAMSAR Vol III must be read thoroughly to familiarize oneself with myriad means to communicate and assist in times of distress.

Pyrotechnic signals are visual and attract immediate attention to the casualty of the distressed vessel or persons. However, with the advancement of technology, quicker and better means of communicating distress have come about and the ship’s crew must be thorough with each and everyone of them.

Order your marine parts here at Raritan Engineering. We always take care of your marine supply needs.

Patrick Childress

Your Marine Head Units Professionals Understand that Annual Frustrating Inspection Time

Raritan Engineering Company would love to share with you this week this helpful information on how to better understand your life raft inspection time. 

Spring is when many sailors have to bite the bullet and have their life raft inspected, an expense that costs 10 to 30 percent of the price they paid for the raft—or more.

In the U.S., there is no inspection requirement for life rafts on recreational boats. Inspection guidelines are set by the manufacturer. In Europe and other parts the world, rafts for recreational boats that sail offshore are supposed to meet ISO Standard 9650-1. This standard allows for an inspection interval of up to three years, but manufacturers often specify shorter intervals, especially for boats that spend most of their time in the tropics. 

The experience of the owners of the 14-year-old, six-man, valise-stored Avon life raft pictured here reminds us of the importance of following the manufacturer’s inspection schedule, however onerous and costly it might seem.

However, because the interval can be as long as three years in newer models, it is not surprising that some owners (and even some inspection stations) are not aware of this. Regardless, the owners of this particular raft, like many cruisers, waited nearly five years between inspections. 

The owner’s experience raises an important point about purchasing a life raft. When respected brands are passed between investment groups and production is moved overseas to save costs, quality control and service support can suffer. 

Your Marine Head Units Analysts Explain How Servicing Your Life Raft is Crucial

Your marine head units experts know that when it comes to any life raft, service support is just as important as the raft itself. In fact, many life rafts are sold with very small profit margins, with the expectation of additional profits through routine servicing. 

A pioneer in the world of inflatable boats, Avon was acquired by French competitor Zodiac in 1998. Zodiac stopped making Avon life rafts in 2004, and then scaled back to two Zodiac brand life rafts. 

To complicate things, several Zodiac-related brands have been spun off, and there is another “Zodiac” life raft on the market. During the economic downturn, British-based Survivetec acquired the Zodiac brand for commercial (SOLAS) life rafts, sold under the SurvivetechZodiac label. 

A State of Flux

It is not clear if all of these SOLAS-compliant facilities on this list are authorized to inspect Zodiac’s new recreational rafts. Zodiac’s list of approved facilities for the new recreational rafts is available here. Having a SOLAS-trained technician inspect your life raft is not necessarily a bad thing, but most life raft manufacturers require you use their certified inspection stations to maintain warranty protection.

The elastomer used to make the Avon life raft pictured above is chloroprene rubber (CR), also known as neoprene. Another elastomer common among inflatable boats is chlorosulfonated polyethylene (CSM), known by the brand-name Hypalon. 

Zodiac Nautic’s new life rafts are made of plastomers, and the company is working with the owners of the raft in these pictures to provide a replacement. The new offshore model is polyvinyl chloride (PVC), and the new coastal raft is made of polyurethane (PU). 

If your life raft is up for inspection in the coming year, you can often negotiate a cheaper price and surely get faster service if you do it in the late summer, fall, or winter, after the spring rush in the recreational market.

Click here and find out more information regarding marine head units and all of your marine supply needs at Raritan Engineering.

via Know Your Liferaft Inspection Requirements

Your Marine Parts Depot Specialists Share the Recipe for Great Teamwork dpS2AC

Your Marine Parts Depot Professionals Encourage You to Strengthen Your Team 

Raritan Engineering your marine parts depot analysts would like to share with you these topics we thought would be of interest to you this month regarding the recipe for great teamwork.

Your marine parts depot experts know that teamwork makes the dream work. There’s no “I” in team. There are countless sayings because it’s such an important aspect to many things in life…including sailing. 

Recognition for a successful sailing campaign usually goes to the skipper and/or owner of a boat. Whether at the podium, on the trophy, or in a press release, their names are front and center. 


The teamwork we leveraged on- and off-the-water made the regatta both successful and satisfying. With the support of our partner boatyard, Sailing Inc. (Cleveland, OH), and Quantum Sails, the boats were rigged and tuned for the start of practice. 

Getting Ready to Rumble

To succeed, we relied on the many talents of our immediate team, as well as the team around us. The idea of teamwork extends beyond the on-board team and involves many players throughout the class. It’s important to recognize this, as it was a strong part of our success. 

Experience Matters

We ended up third overall at KWRW, and I’m quite pleased with this result. It improved on the 2016 results, and we felt that we left it all on the race course. 

Your marine parts depot specialists encourage you to browse our marine parts selection here at Raritan Engineering Company.

Your marine parts depot professionals feel that experience matters, but good teamwork (and knowing how to build it) can make a big difference. Remember, there is already a strong support network around you, including your local sail makers, hardware suppliers, boatyards, and yacht clubs.

To sail successfully, you need a crew that works together – having a shared purpose, able to make on-the-spot decisions, good at problem solving and communicating, trusting of one another and actively participating in the goal at hand. 

Here’s the five sailing essentials for a successful team building challenge:

1.    Take the helm

Teams of 7-18 people are allocated to yachts ranging from 33-45ft. An experienced skipper leads your team; providing positive feedback, encouragement and makes sure each team member is having fun and pulling their weight.

2.   Trim the sails

After boarding the boats, teams have a safety briefing and are off to practice their race moves. On-board, co-workers quickly learn they must abandon pre-existing relationships and solve problems together – helping to build team cohesion and break down silos.

3.   Grinding the winches

Now it’s time to put your race face on. Teams jostle for position on the start line before the race begins, but once the gun goes off, it’s all hands on deck to make it happen. 

4.   Learn to tack

Sailing simulates your work environment – constant changes and ‘unknowns’ emerge and your team must adapt and deal with the situation. Sailing around the natural landmarks on Sydney Harbour, you learn to watch the water ahead, judge the wind and adjust your course to make the most of the opportunities.

5.   Safe to harbour

Everyone is encouraged to participate and no previous sailing experience is required to capably reach the finish line. As a team building activity, it uses techniques that highly competitive yacht crews use and converts them into learning experiences that your team will never forget.

Raritan Engineering encourages you to buy marine parts here with us.

via Teamwork is Key

via 5 sailing essentials for successful teamwork

Your Marine Sanitation Analysts Share the Secret to Keep Your Holding Tanks From Smelling Bad

Raritan Engineering would like to share with you this week these tips on keeping your holding tanks from smelling bad.

Take a look at this photo and imagine it is your backyard. Or your patio, or balcony. Yep, those are sealed 5-gallon buckets full of iguana poop and “other” waste, ripening in the Chesapeake Bay area’s autumn sun.

Do you ever wonder whether those bright blue bottles of chemicals that claim to eliminate your head odors actually work? So did we.

Readers may remember Frye as the tester who nearly reduced the family washing machine to a bucket of bolts in his quest for a safe and effective method for washing ropes. He’s just that kind of guy.

Apart from Frye’s finding that a holding tank is an excellent reservoir for highly explosive gases, one of his more exciting discoveries was that any product’s claims of “odor-eating bacteria” should not be taken at face value. 

Your Marine Sanitation Experts Suggest You Follow These Easy Steps

Your marine parts source professionals know that on boats with toilets, builders install a holding tank to hold the sewage until the boat reaches a pump out facility. Some yachts come equipped with a “Y” valve, so that they can choose to pump out or discharge overboard while way out in the ocean. 

Most holding tanks are plastic, but there are some stainless steel tanks and even a few aluminum tanks still around.

Odor Prevention

To prevent odor, there are several things you can do.

  • Make sure your holding tank system has adequate air flow. Eliminate any low spots in vent lines that would restrict the flow of air. Aerobic bacteria (the good guys) requires oxygen to live and function.
  • Avoid the use of detergent, bleach, dish soap or other cleaners or odor-masking agents  in the holding tank.

All the suppliers of holding tank products, who we talked to, agreed that boaters should shock their tanks in the spring to clean out and de-scale the inside. “KO Kills Odors” is one that works well for this, as well as midseason use if you notice an odor building up.

 KO-Kills Odors eFCFoO

Tank Management

There are three different methods for managing the waste in your Holding Tank.

Method 1- Chemical – Most common

  • Chemical treatments are the most common and kill bacteria immediately.
  • They are very effective at controlling odors, but are not designed to dissolve waste and are the least environmentally friendly. 

Method 2 – Bioactive Treatment – 2nd most common

  •  Bioactive or biologic treatments contain live aerobic bacteria, which break down waste, reproduce and crowd out anaerobic (odor-producing) bacteria.
  • They are environmentally friendly.
  • Like enzymes, bioactive treatments emulsify paper and sewage completely.

Method 3 – Enzyme Treatment

  • Enzyme treatments accelerate the digestion of organic materials in waste and neutralize odors at the same time.
  • They work quickly to completely emulsify paper and sewage and have extremely low toxicity.

We believe in using environmentally friendly products, but there are times when we use a product that is not “environmentally friendly” but use it in an environmentally friendly way.  


When using biologic or enzyme treatments to promote bacterial growth care must be taken to avoid using soaps or any products like vinegar that will upset the ph balance and destroy the bacterial action that will result in odor.

With all methods, it is recommended that biodegradable RV/Marine toilet paper (single ply, thinner and not as soft as household toilet paper) be used so that it will break down. 

Click here and get more information from Raritan Engineering regarding marine santitation and all of your other marine supply needs.

via Winning the Battle Against Holding Tank Odors

via Does Your Holding Tank Really Stink?

Your Marine Products Specialists Announce That Kite Sailing Is Here to Stay

Raritan Engineering your marine products analysts would like to share with you these topics we thought would be of interest to you this month regarding an introduction to the kite sailing world.

Your marine products experts say, wind junkies beware, there is a new sailing discipline out there that might just force your wallet open, rearrange your life’s priorities, and produce a little friction on the home front. But don’t worry, those few nights you might have to spend on the couch will be worth it, I can assure you. Kite-sailing (or kite-surfing) has arrived on the scene and is causing quite a disturbance in the households of windsurfers, wake boarders, and small-boat sailors alike.

Your marine products distributors professionals know that because they use a large kite to harness the wind, kite-surfers can enjoy the rush of speed sailing, the freedom of wake boarding without a boat, and the ability to fly higher than any wind-surfer has dreamed of jumping. 

In its infancy, this sub-sect of the sport had plenty of problems that hindered the average waterspouts enthusiast from joining in the fun. First, the main issue was how to make the kites safe for beginners. 

The second issue was designing a kite and board combination that would allow a person to travel upwind so that a user could take off from a spot and not have to have a shuttle car or boat set up five miles downwind.

The third and final issue was figuring out how to make the kites re-launchable from the water. In 1984, Bruno and Dominique Legaignoux invented an inflatable, elliptical kite that if allowed to crash into the water, would stay on the surface and could be relaunched into the air with little effort. 

So how does a conventional sailor get started? We’ll if you remember how difficult it was to get that first ride aboard a windsurfer, you’ll realize that knowing a few important aspects about this new discipline can truly help accelerate your rate of learning. Your marine products pro shop analysts say that the first thing to do is find an instructional video. Most kite dealers will have a few to choose from, but one video recommended across the board is Boost.

No matter where you’re located or what water sports background you have, kite sailing is fun, but unusual enough to present a steep challenge for the beginner. The good news is that the learning curve is nearly vertical, so it won’t take too long before you are up and riding.

Your Marine Products Professionals Discuss How Kite Sailing Doesn’t Always Put a Dent In Your Wallet

We encourage you to browse our marine products selection at Raritan Engineering and see how we can take care of all your marine supply needs.

Your marine parts depot specialists know that ram-air kites are basically rectangular kites that allow air to flow into chambers and inflate, thus giving the kite its shape and rigidity, allowing it to perform. The advantages of ram-air kites are that they’re extremely maneuverable, and due to their flat design, have more power per square meter than their inflatable siblings. 

Your marine products international experts feel that the biggest advantage to an inflatable kite is the fact that air bladders make this kind of kite easier to water launch. Another plus is that if the pilot crashes the kite, and for some reason cannot get the kite back in the air, the bladders also provides flotation in case the user has to paddle the rig to shore for whatever reason. Inflatable kites are launched close to the neutral zone, (almost perpendicular to the wind direction), thus making them more controllable when self-launching.

Inflatable kites are by far the more popular of the two. But should you choose to purchase an inflatable there is more information you’ll need to know. There are different types of inflatable kites on the market. The first type is called two-line. Yep, you guessed it, the kite is controlled by two lines. These kites are remarkably simple to set up, very easy to water-launch, but when flown are fixed in a fully powered angle to the wind. So if the wind gusts, you are going to feel it and have to compensate. 

If you decide to follow the trend and get into kite sailing, another thing you’ll want to know about is the idea of aspect ratio. In a vast oversimplification, aspect ratio refers to the shape of the kite and specifically the curve from end to end and width. 

Somewhere east of Winnemucca, Nevada at 3 in the morning, Johnny Heineken‘s car broke down so we packed everything into 1 SUV with 5 sets of wind and snow gear, dog and riders for the remaining voyage east. 

Snow kiting is just as it sounds. You choose either skies or snowboard and get pulled around on your kite- up, down, around and over what ever terrain you choose. 

I rigged my 13m foil kite, launching with ease and immediately got pulled across the meadow on my snowboard.

Snow kiting has all the benefits of kiting on the water without the consequences of water itself. I dropped and tangled my kite quite a few times in the 8-12k breeze and easily unhooked and walked up the line and bridle to unsort it all out. 

For day 3 and 4, we switched venues to a location called Electric Lake along the Huntington Canyon Scenic Drive as the Skyline Peak was in white out conditions. It was more rolling hills and room to explore as the newbies including myself were still mastering the basics. 

I really can’t emphasize how fun and accessible snow kiting is whether you’re a newbie or a pro. The hardest step was committing and just getting there, after that the fun was nonstop.

So choose your marine supplies here at Raritan Engineering, where we always take care of your marine supply needs.

via Taking the Kite to the Hills

via The World of Kite Sailing

Buy Your Next Reverse Polarity Alarm at Raritan Engineering


We Know What You Need

Essential aid for traveling boaters when connecting to unfamiliar dock side power. The quality of marina wiring can vary greatly from place to place and from plug to plug.

That is why most boats designed to plug in to shore power have a polarity indicator. It is an important safety feature that few boat owners fully understand or appreciate.

With a couple of exceptions, it should be standard equipment on every boat that is capable of plugging into a common 120 volt AC shore power outlet.

At Raritan, we offer dependability where it counts.


Be Sure to Get Your Reverse Polarity Alarms at Raritan Engineering