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Black tank chemical

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Schooler

RVF Newbee
Joined
Jun 21, 2026
Messages
2
New guy here.
I have tried several black tank solutions to break down waste and they kind of work.
I need some suggestions on the best chemical to use in my black tank.
Thanks for any help in advance.
 
I've tried them all. I liked DiGest IT, until a professional sailing racer friend told me about WEST MARINE EXTERMINODOR and I haven't looked back since!
Incredible stuff.
 
I've had very good luck with Digest-IT+ since I started using it about two years ago.
 
Asked about this while at Newmar for maintenance.

They had issues with the pressure sensors they use for tank levels failing.

Long story short they tested a bunch of the treatments on an old tank. Aqua Max was what they found to do the best in breaking down / cleaning the tank. Been using it since and all the tanks read correct as well as stay clean.


It is less expensive to pick it up at Walmart rather than Amazon also.
 
I've also used aqua max (over 20 years), works well
 

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