Remove old softener and install a new puronics defender C. 3/4” copper and 1” coppe Removed old softener and filter. Repaired section of line and installed a new puronics defender softener and filled salt tank. Set hardness to 22 grains.looked at toilet and flushed 20 times could not find a leak at this time. Recalled around base and told customer to call if notice a leak.