TST Camper/RV Grey Water Odor Control - Removes Grease Buildup in Gray Water Tank, Sink & Shower Drains - 4oz Treats 40-Gal Holding Tank - Safe Septic Tank Treatment - Lemon, 64 oz (40256)

I always use this when I take my trailer camping. Many people forget to treat their grey water when they go camping and only add treatment to the black water tank. It is necessary to make sure the grease breaks down and doesn't sludge up the tank. It also keeps the smell down. I recommend using more than the dosage recommended on the bottle. I use about half a bottle when I go camping. It is cheap insurance and worthy preventative measure that can save you money in the long run on tank cleaning fees. It is super easy to use, pour it down the sink and add some water. It is very effective at keeping your tank clean.

We live in our RV fulltime and use this product regularly, especially before moving our motorhome. It works exactly as advertised — no odor problems at all. Easy to pour, effective, and gives peace of mind while traveling. Definitely a must-have for RV owners.

Great product. Keeps the smells away. I've been using this for months now.

Works as well as any other

Prevents any order from developing from the grey tank residues. Keeps the grey tank smelling nice for long periods with simple treatments.

Smells great!

Wonderful

Came partially leaked