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[Seawolf1090]

Having had some septic tank problems myself, I took a hint from my Dad, and now run the washing machine eflux to a separate 'dry well' tank. That stuff is pure poison to a septic tank!
I am planning to run the shower and sink drains to it too. Keep the raw water and soaps out of the septic system.
Tried the Ridex stuff - did not help then began reading warnings regarding it's use.