Is anyone out there using oxygen bleach in their holding tanks? My wife bought a product named "Stain Solver" which is a granulated white powder, and she likes it for laundry and other cleaning. I looked up its uses and it is recommended for septic tanks, as it provides oxygen into the tank and this oxygen feeds the sewage bacteria and assists in the natural break down. It sounds like this might be a good product for my boat's holding tank for the same reason. It is also great at cleaning the toilet bowl etc. Perhaps Peggy Hall has a comment on this? Thanks