Camco 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)

Our new camper's grey tank was stinking (even though I flush it after every trip). We tried this at first just pouring it down the kitchen sink drain and it helped a little but the smell was still there. Then we also poured a little down the bathroom and shower drains, now all the smell is completely gone. I highly recommend!

Good price, I like the larger size bottle. I've tried quite a few other gray tank odor controls that didn't work. To my surprise this one does. I used the 8oz as recommended for 40 gallons and my gray is 75 gallon. It still does the job just fine. Give it a try!

I love the smell of Camco TST Camper / RV Grey Water Odor Control. I put a few ounces of the gray odor control down the sink drains every few days. The Camco TST Camper / RV Grey Water Odor Control eliminates any odors coming from the drains. The only odor is the lemon smell from Camco TST Camper / RV Grey Water Odor Control. I will definitely buy again.

Does a good job. Put it in after every flush out and never have "sower" smelling drains. is worth the little you pay for it to not have "her" bi--hin in your ear about how the trailer smiles.

Does the job

I used it for my shower and it helps to deodorize. Great for the RV too. I use very little and it goes a long way.

I came across this product when researching a way to get rid of stink in our kitchen sink in the camper. This got rid of the stink, and kept it away. We used a small amount in all of our grey water tanks after emptying. Let it sit until next time we used the tanks. It worked and only used 1 cup(ish) per drain. Enough to use a 2nd round.

Helped keep the odor don in hot weather but not the best product