Knocks Out Odor Kit

Knocks Out Odor Kit – Natural Holding Tank & Toilet System Cleaner

Combat marine sanitation odors the natural way with the Raritan Knocks Out Odor Kit, a two-step, eco-friendly solution that keeps your toilet system fresh, clean, and running efficiently. Combining two of Raritan’s most trusted products—K.O. Kills Odors and C.P. Cleans Potties—this kit delivers deep biological treatment for your holding tank and daily cleaning for your marine toilet.

Step 1: K.O. Holding Tank Treatment

Add K.O. to your holding tank to introduce powerful, beneficial bacteria that actively break down waste and convert it into odorless liquid. This all-natural, non-toxic formula works at the microbial level to eliminate foul smells at the source—without harsh chemicals, formaldehyde, or synthetic additives. K.O. also helps reduce sludge, prevent clogs, and improve pump-out efficiency over time. Just one application keeps your system operating odor-free for weeks.

Step 2: C.P. Toilet Bowl Cleaner

C.P. is a specially formulated, biodegradable toilet bowl cleaner that works in harmony with K.O., preserving the microbial environment while cleaning and deodorizing with every flush. It removes buildup, prevents scale, and adds a light, fresh scent—all without harming plumbing components or beneficial bacteria.

The Knocks Out Odor Kit is safe for all marine toilet systems—manual, electric, or vacuum—and ideal for boats operating in closed quarters, environmentally sensitive areas, or No Discharge Zones. Unlike chemical cleaners that can disrupt your sanitation system or mask odors temporarily, this biological approach works with your plumbing to maintain freshness and functionality over the long haul.

Eco-conscious, boat-safe, and user-friendly, the Knocks Out Odor Kit is the go-to solution for boaters who demand a clean, reliable head without sacrificing the environment or system health. Keep your holding tank and toilet working in perfect harmony—naturally.

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Knock Out Odors Kit KO2

Eliminate rotten egg smell In all raw water toilets with this simple system.

By drawing a small amount of C.P Cleans Potties into the incoming water the rim of the bowl will be fully treated with a non chemical enzyme that prevents that horrible rotten egg smell. Most owners do not realize that it is the seawater and brackish water organisms dying in the rim of the bowl that sit until next use. No amount of cleaning or chemical used in the bowl can prevent the odor.

The key is to treat the water before it enters the rim of the bowl.

This kit is specifically for use with raw water toilets as freshwater toilets do not suffer from the same issues because freshwater should not contain organisms. Proper use of this kit will help to keep your entire sanitation system smelling fresh not offensive! Nobody steps on a boat and wants to smell the unpleasant odors that can be associated with a sanitation system in poor working order. The first step starts with the C.P. being added to each flush to prevent the outside water from being overwhelming when the first flush is initiated after sitting for a period of time.

In addition to treating the incoming water we include the K.O. Kills Odors to add to the holding tank. Kills Odors works exceptionally well with good venting. No chemical can be used in the toilet as it will kill the good stuff in KO designed to naturally breakdown the holding tank waste while minimizing the odor. The second step is to add the K.O. to the holding tank to naturally break down the waste. With each flush the C.P. will not only prevent odors but it will also help to keep the bowl sparkling clean and smelling great! If a little extra cleaning is necessary just squirt some C.P. in the bowl to clean it!