Sweetfilter Washing Machine Filter Lint Trap Can Double The Life of Septic Tank Systems Discharge water from a washing machine is laced with enough lint, hair, and non-biodegradeable fibers to carpet your living room once a year. When it drains into a utility sink, the debris clogs the drainpipes and can destroy your septic tank system. Our polyester bag traps lint before it enters the drain by fastening it over the end of the washer discharge hose. Bypass valve prevents overloading and expensive damage to washer pump. Our LT-1 kit has a finer mesh to trap more fibers than any other filter tested.4 X the capacity and 400 X lint removal of other traps tested. One package includes 1 lint traps and locking velcro straps. To insure maximum septic tank life replace the LT-1 every 2-3 weeks. 30 day money back warranty.