RV’s & Boats

Marine & RV Holding Tank Treatment


Drainbo® Natural Marine & RV Holding Tank Treatment is a biological holding tank treatment formulated for use in all boats, ships, recreational vehicles, and portable restrooms. An environmentally safe, economical, and easy-to-use liquid concentrate, Drainbo® will penetrate, degrade, and digest biological waste, household grease, and detergents.


Drainbo® Natural Marine & RV Holding Tank Treatment should be added every time your tank is emptied. Six ounces poured directly into the toilet weekly will keep the toilet fresh and the waste digested. Add two ounces to the galley or kitchen sink for freshness and drain maintenance. Repeat this treatment in the shower and bathroom sink, which will keep the gray water tank fresh and drain lines clean and flowing smoothly.

Shake Drainbo® Natural RV Holding Tank Treatment thoroughly before using.

Avoid contact with eyes and open wounds. Avoid ingesting Drainbo® product. In case of contact with eyes, flush with plenty of cold water for at least 15 minutes. For contact with open wounds or broken skin, wash area with warm water and soap, and apply a bandage. In case of ingestion, drink several glasses of water and induce vomiting to avoid diarrhea.

Starting at $16.95!
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DRAINBO’s Marine & RV is the safe, all natural drain cleaning solution for you and your holding tank!

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Stain & Odor Eliminator
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Septic Drain Treatment
Wetsuit & Neoprene

Great 2-in-1 product for stains and smells

"We regularly get pet stains on our carpet

so I tried using the Drainbo on them. I'm typically skeptical about ""natural"" cleaning products because I feel like you need the chemicals to actually get clean it actually eliminates them. They use some type of natural enzyme formula that breaks down the odors and in about 10 minutes

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