RV Holding-Tank Treatments
A holding-tank treatment earns its keep on every dump cycle: it digests solids and toilet paper so they don't pile up beneath the sensors, and it keeps the black tank from announcing itself downwind. The shelf here spans the range, from Camco and Kronen drop-in pods to bioactive and enzyme formulas by Star Brite and Thetford, nitrate and formaldehyde-free liquids, and unscented picks like Valterra Odorlos.
48 products
JR Products Holding Tank Heater Pad | 12V/110V, Thermostatic, Fits Tanks up to 15 Gal
Thetford Aquamax Spring Showers Holding Tank Treatment | 1 Gallon Liquid
LaSalle Bristol ThermaHeat Holding Tank Heating Pad | 12" x 18", 12V with Thermostat
Valterra Odorless Holding Tank Deodorizer | RV Odor-Control Formula
Star Brite Aqua Water Tank & System Flush | 1-Gallon, Fresh Water Systems
Biokleen Kleen Waste Holding Tank Treatment | 1 Gallon
Valterra Pure Power Blue Waste Digester & Odor Eliminator | 1-Gallon Bottle
Valterra Pure Power Waste Digester & Odor Eliminator | 128 oz. Gallon Bottle
Valterra Septic Power | Septic System Maintainer, 128 oz Bottle
Camco TST MAX RV Toilet Treatment, Lavender, 1 Gallon
Camco TST MAX RV Toilet Treatment Drop-Ins | Orange, 30-Pack
Camco TST RV Toilet Treatment Drop-Ins | Fresh Scent, 30-Pack
Walex Citra-Pak RV Holding Tank Drop-Ins | Citrus, 30-Pack
Walex Fresh-Pak RV & Marine Holding Tank Deodorizer, 30-Pack
Walex Bio-Fresh Liquid RV Holding Tank Treatment, Ocean Mist
2 options
Camco TST MAX RV Toilet Treatment Drop-Ins | Orange, 15-Pack
Star Brite Odor Away Holding Tank Treatment | Nitrate Formula, 32 oz
Valterra Odorlos Holding Tank Treatment | Unscented, 4 oz Bottles, 9-Pack
Walex Bio-Fresh Liquid RV Holding Tank Treatment, Alpine Fresh
3 options
Kronen Holding Tank Treatment | 32 oz Tip-and-Measure Bottle
Kronen Holding Tank Treatment Drop-Ins | 10-Pack Pre-Measured Pods
Kronen Holding Tank Treatment | Palo Santo Scent, 32 oz
Valterra T-5 Squeeze & Pour Holding Tank Deodorizer | Lemon Scent, 8 oz
Walex Bio-Active Holding Tank Deodorizer & Waste Digester | 68 oz Liquid, Unscented
Camco TST MAX Toilet Treatment Drop-Ins | Lemon Scent, 30-Count
Kronen Holding Tank Treatment | 4 oz., Pack of 6, Formaldehyde-Free
Star Brite Odor Away Holding Tank Treatment | Nitrate Formula, Formaldehyde-Free, 32 oz
Walex Citra-Fresh Liquid RV Holding Tank Treatment, Citrus
3 options
Walex Porta-Pak Holding Tank Deodorizer | Fresh Scent, 10 Drop-Ins
Walex Porta-Pak Holding Tank Deodorizer | Lavender Breeze, 10 Drop-Ins
Thetford AquaMax Holding-Tank Treatment | Summer Cypress Scent, 64 oz
Star Brite Bio Odor Holding Tank Treatment | Bioactivated Waste Digester & Deodorizer
Thetford AquaMax Holding Tank Treatment - Summer Cypress Scent | 6 x 8 oz Bottles
Thetford AquaBio RV Holding Tank Treatment | Citrus Twist, 64 oz
Thetford AquaBio Holding Tank Deodorant, Citrus Twist (8 oz Bottles)
Bio-Kleen Kleen Waste Holding Tank Treatment | 32 oz
Thetford AquaBio Toss-In Tank Treatment Packets | 16 Count
Camco TST Probe Cleaner | 32 oz, Restores Tank Sensor Accuracy
Nodor Eliminator Holding-Tank Deodorizer | Berry Scent
Pure Power Blue Dry Waste Digester & Odor Eliminator | 8 x 2 oz Packets
Matching a holding-tank treatment to how you camp
Every product here chases the same two goals: break down waste and paper so nothing mounds up under the sensor, and keep the tank from smelling. Chemistry is what sets them apart, and that matters more than the scent printed on the label.
- Bioactive and enzyme formulas. Star Brite Bio Odor and Thetford's triple-enzyme AquaMAX dripacks rely on live bacteria and enzymes to digest waste. They go easy on tanks and septic systems, but they act slowly and bleach kills them.
- Nitrate formulas. Star Brite Odor Away runs on nitrates rather than formaldehyde, giving strong odor control that still passes at dump stations and septic systems.
- Format. Drop-in pods such as Camco TST and Kronen's pre-measured pods skip the pouring and guesswork. Liquids let you scale the dose to tank size, and dry packets like Pure Power Blue pack small and shrug off freezing temperatures.
- Formaldehyde. A few old-school treatments still use it. It deodorizes hard but punishes septic systems, and dump stations turn it away more often every season, so the formaldehyde-free options here sidestep the issue.
- Scented versus unscented. Valterra Odorlos leaves out fragrance for anyone who prefers no smell over a berry one. Most others ship in a scent if you want the tank reading fresh.
Add a dose after every dump along with a couple gallons of water so the chemical can slosh through the tank, because a dry tank is a smelly one. If the monitor still shows full after a solid treatment and rinse, the culprit is buildup on the probes, which puts it in tank sensor territory. Round things out with the right toilet chemicals at the bowl, and keep your sewer and dump gear within reach for cleanup.