ThetfordWaste Holding Tank Treatment, 1 Gallon, White

Have used before. Works just fine. Has pleasant smell.

Easy to use and has a decent smell. It works great for the dirty job it has to do. It is reasonably priced for camper supplies. Have used for many years and very pleased with performance.

I have tried several products over the 45 years I have owned RV's and this is has always outperformed everything else by far. They have taken the formaldehyde out now which has weakened it some but its still outperforms everything else out there. Just remember after draining your blackwater tank to add about 4-5 gallons of water and add this product. Keep it stored this way and it will keep smells away and clean your tank on the way home.

Best stuff for campers

This product did not arrive as it was labeled. In the past, I ordered aqua Max now this comes as Aqua Chem. They changed the formula, but yet still advertise Aqua Max. That product worked, and worked very well. The Aqua Chem simply turns your waste water blue, and still has that nasty Aroma. Thanks for taking the good stuff out of your product.Total crap seems to fit.

Just put it in our black tank,and added water per instructions. Have not did anything else. Our trip fell through.

I was quite upset when we received AquaMax instead of the AquakKem we ordered. Over the years we found that AquaKem was the only treatment that worked in our boat's holding tank, and I was extremely hesitant to now try something else. But since formaldehyde products are no longer available we had to try something, so we tried the AquaMax we received. What do you know - AquaMax works great. Amazingly great. And now no more formaldehyde. Just make sure you flush your tank thoroughly before first use so residual formaldehyde doesn't kill the good bacteria in AquaMax. Highly recommend.

I'm not a big one for writing reviews but this product deserves one.Every time we would step onto our boat we could always smell that faint yet stinky holding tank odor.We had tried just about every product out there with good ratings but to no avail.I asked the service manager at out marina, who is a very honest man, he won't do work you don't need done and always offers free advice. He said probably the only way to get rid of the odor is to replace the lines that go to the black water tank. He stated that the foul odor will permeate them over the years. It was really bad, one time my wife flushed the head while I was in the engine room and I had to turn the blowers on to get rid of the smell !!!!Anyway, I decided to try another product or two before I went the route of changing those lines.I put eight ounces, as per the instructions, followed by a gallon of water into our 55 gallon holding tank and a couple hours later the smell was gone....and I mean GONE !!!! I was AMAZED beyond believe.I tried flushing the head which was usually would cause the whole boat to fill up and stink really bad...nothing !!! NO FOUL ODOR AT ALL !!! It has now been over two weeks and still no odor so it seems as though it's not just a temporary fix.....that faint odor when you first step on the boat is no longer there.This stuff WORKS and is worth every penny.If you have a odor problem on your boat or RV....this is an absolute must.In over 40 years of the water I have never come across anything better, give it a go, you won't be disappointed !!!

Fantastic. This one works great. But the price doubled, so looking where and/or when to get it again.

Tried many other brands with minimal success.This product eliminates that porta-potty odour in the trailer even in the hottest weather.

Used it for years and never disappoints.

Speedy service...great price! Great product so far! It's just starting to get hot out so it remains to be seen if it still out performs the competition.

Reduces the odor of the black tank and hopefully will keep it cleaner.