I agree with Prism99.
I am not sure why you need to use so much bleach. I used to live in a house that had a septic tank, and the advice was never to use bleach, because it kills the bacteria needed for efficient functioning of the septic tank. Other advice was only to use white toilet tissue without added 'things' such as aloe vera, not to flush baby wipes, face wipes etc; in other words "pee, poo, and paper" aka 3 Ps only. There are toilet cleaners that state 'safe for use in septic tank systems', and that is what I used in the toilet only, but not all the time. The tank (in my instance) looked after itself by following these guidelines.
Steam is excellent for cleaning, and dishwashers get dishes cleaner than washing in the sink.