Top 10 Gray Water Tank Treatment – RV Sewer Chemicals & Cleaners

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1. Camco


For Use In Drains, Stops Sink Trap Odors, Camco TST Lemon Scent RV Grey Water Odor Control, Sink Traps and Waste Vents, Treats up to 16, 40 Gallon Holding Tanks 64 Ounce Bottle

Camco #ad - 64-ounce bottle: 4 ounces treats a 40-gallon holding tank. Grey water holding Tank Deodorizer: Eliminates foul odors. Fresh lemon scent: Leaves your grey water tank smelling fresh. Rv waste water holding tank treatment: Removes grease buildup in your grey water tank, sink and shower drain lines. Fit type: Universal Fit. Biodegradable formulation: Biodegradable formulation does not contain formaldehyde, is septic tank-safe and is non-staining.
BrandCamco #ad
ManufacturerCamco #ad
Height3.5 inches
Length9.4 inches
Weight4.55 pounds
Width4.55 Inches
Part Number40256

2. Thetford


RV Grey Water Tank Treatment, 24 oz, Grey Water Odor Control, Thetford 15842

Thetford #ad - Eliminates grey water odors in RV drains and vents; No chlorine or solvents to damage valve seals. Prevents and removes grease build-up. Pleasant floral scent.

Safety: grey water odor control is a 100% biodegradable liquid acting as a deodorant and detergent. Functionality: Dissolves cooking grease and cleaning residues. Non-staining, 100 percent biodegradable formula. Versatility: thetford's grey water odor control is designed to eliminate and prevent offensive odors in RV grey water holding tanks, showers, vents, drains, and traps of sinks. Fit type: Universal Fit. Utility: prevents grease build-up in grey water holding tank, eliminating the source of offensive odors. Easy to manage 24 ounce bottle. Convenience: Formulated without chlorine or solvents to damage valve seals.
BrandThetford #ad
ManufacturerThetford #ad
Height2.5 inches
Length8.5 inches
Weight1.69 pounds
Width3.5 inches
Part Number15842
WarrantyManufacture Warranty

3. Thetford


Thetford 15842 RV Trailer Camper Sanitation Gray Water Odor Control 1

Thetford #ad - 100 percent Biodegradable Liquid. Dissolves cooking Grease And Cleaning Residues. Waste holding tank treatment; holding tank treatment; biological treatment used to eliminate And Prevent Offensive Odors In Drains/ Vents And Traps Of Sinks/ Showers And Grey Water Holding Tanks; Without Formaldehyde; With Deodorant; Without Lubricant; 24 Ounce Bottle; Single. No chlorine or solvents To Damage Valve Seals. Prevents grease build-Up In Grey Water Holding Tank.
BrandThetford #ad
ManufacturerTHETFORD #ad
Weight1.44 Pounds
Part Number15842



32oz, Fats, Dissolves Grease, 3 Month Supply, Reduces Odors, Oils, MICROBE-LIFT RV Grey Water Holding Tank Treatment

MICROBE-LIFT #ad - Contains 3 months of treatment: each 32oz bottle of the microbe-lift septic tank treatment contains 3 months of supply. Made in the usa since 1976: the microbe-lift septic tank treatment has been keeping customers happy and saving them thousands on costly septic repairs for over 45+ years.

60-120 ml into a sink or shower drain followed by ½ gallon 2 liters of warm water. Simply pour 2-4 oz. Quality ingredients and environmentally safe: Gray Water Tank Treatment contains a special blend of our highly specialized cultures; That means our septic treatment is all-natural, contains zero chemicals, is non-toxic and groundwater safe. Destroys rv holding tank odors: septic system treatment will produce a slight odor when first applying due to the hydrogen sulfide which is naturally produced by the sulfate reducing particles in the product.

The hydrogen sulfide provides an energy source for the particles, which oxidizes hydrogen sulfide; A little odor is released upon application and is gone in minutes; No competitor on the market has a product as fast working as Microbe-Lift's.
ManufacturerEcological Laboratories, Inc. #ad
Part NumberPNGGWT32

5. Adios!


Quart 32oz, Tissue, Adios! RV Holding Tank Treatment and Deodorizer, Digests Waste, Paper for Gray and Black Tanks

Adios! #ad - Trusted by professionals - we are an american manufacturer with over 30 years of experience in supplying professional goods for retailers. Each bottle contains billions of digestive enzymes, which breaks down solids, grease and all brands of toilet paper.

Safe for all types of RV, including plastic, camper and boat piping, metal and tubing. Say goodbye to headaches with Adios! Powerful treatment - full of live bioactive enzymes, waste, our tank treatment is a maximum strength solution for properly maintaining RV and marine holding tanks. Safe enzymes – 100% safe to use around kids and pets, without caustic chemicals and VOCs. Black and gray tanks – effectively treat both types of holding tanks with a single tank treatment solution.

No more odors - say goodbye to stinky drains and bathrooms! Our holding tank treatment neutralizes smells at the source, bringing peace of mind to you and your nose again. From kitchen grease and food bits to human byproducts, our proprietary enzyme formula works on all organic solids and materials. Adios! is our premium consumer line, without the big box price tag.
BrandAdios! #ad
ManufacturerCompare Brands #ad
Part Number50CADI
Warranty100% Satisfaction Warranty



Dometic D1303001 Gray Water Tank Treatment, 32 Fluid Ounce

DOMETIC #ad - Treats gray & black water tanks. Packaging & labels could vary from images shown. Holding tank treatment eliminates fume backups.
BrandDOMETIC #ad
ManufacturerDometic #ad
Height10 inches
Length4.5 inches
Weight2.3 Pounds
Width3 inches
Part NumberD1303001

7. Valterra


32 oz, Lemon Scent, Valterra V23400 Pure Power Gray Water Tank Treatment

Valterra #ad - Biodegradable. High and low temperature odor control. Prevents grease and oil build up. Leaves a fresh lemon scent.
BrandValterra #ad
ManufacturerValterra #ad
Weight1.94 Pounds
Part NumberV23400

8. Walex


Walex Elemonate RV Grey Water Deodorizer& Freshener, Lemon Scent, Pack of 5

Walex #ad - Deodorizes grey tank. Freshens sink and drain lines. Bio-degradable. Rapid dissolve tablet. Dissolves grease and organic sludge from drain lines and grey tank.
BrandWalex #ad
ManufacturerWalex Products Company, Inc #ad
Height9.25 inches
Length2.01 inches
Weight0.54 Pounds
Width7.99 inches
Part NumberELEMBG

9. Camco


32 oz, Camco 41192 TST Orange Holding Tank Chemical

Camco #ad - Eliminate and break up odor causing material. Fit type: Universal Fit. 32 ounce bottle. Ultra-concentrated formula. Fit type: Universal Fit. 2 ounces to treat 40 gallons.
BrandCamco #ad
ManufacturerCamco #ad
Height2.25 inches
Length7.81 inches
Weight3.3 pounds
Width5.19 inches
Part Number41192
WarrantyManufacturer Warranty

10. Unique


Stronger Liquid RV Toilet Treatment, Liquefies Waste, Unique RV Digest-It+, CA Compliant 32 oz., Prevents Sensor Misreading, Eliminates Odor, Extra-Strength Black Tank Treatment for RVs

Unique #ad - Rv digest-it+ rv black tank treatment breaks down waste and all brands of toilet paper, preventing pyramid plugs and making dumping easier. Rv digest-it plus camper toilet treatment is designed to work with The Unique Method to ensure clog- and odor-free camping, full-time, dry camping, no matter what your style is: hookups, extreme heat.

Carried in thousands of retailers from coast to coast. Breaks down clog-causing waste and eliminates porta potty smells and sewer odors in your tank. Rv digest-it+ is unique. Faster and more effective waste and rv tissue digester. Maintains working sensor probes.

Our strongest complete rv tank treatment, Significantly stronger than RV Digest-It Classic. Campground and home septic safe, CA compliant. Formulated with trust* in the usa. Digests grease, oil, and food debris in gray tanks. Stops black water tank sensor probes from misreading by liquifying waste before it builds up and clings to probes. 1 brand recommended by RV techs.
BrandUnique #ad
ManufacturerUnique Manufacturing & Marketing #ad
Height9 Inches
Length3.15 Inches
Weight2.27 Pounds
Width3.15 Inches
Part Number415-AZ
WarrantySatisfaction Guaranteed