Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: NOT for septic systems.
Review: Maybe these work well with sewer systems, but not with septic systems!Not until you go to the Fluidmaster web site, will you find out this bleach based system, is not recommended for septic systems.Of course I didn't find out until I went to their web site after installing.This is NOT mentioned on the box, or at Amazon.
