I've used this product for 14 years. The sensors in my black and gray tanks still work perfectly. Be sure to use as directed. Somewhat expensive, but I feel it's worth it to keep my tank capacities accurate.
Rating: [5 of 5 Stars!]
By
Jeff Clark
Date: July 06, 2021
Not only did this stuff work, it worked immediately. We dumped an entire bottle in by mistake, but whatever, our gauge immediately started working.We ordered 5 more bottles.
Rating: [5 of 5 Stars!]
By
EUGENE MCNEW
Date: September 30, 2020
Worked great !I drained the grey tank - put 8 ounces of product in sink - filled grey tank with water - waited 24 hours - drained tank.It worked !I will use it once a year .