by paulbrisenden »
Mon Jan 09, 2023 11:31 am
Hi guys, i need some help here. after changing my macerator in a cloakroom WC ive chopped back my 22mm waste and found that it is filled with calcium build up so much that the 20mm opening is more like 10mm. with the waste being vertical, can i safely descale this pipe with acid and still flush this through the system or will the calcium just drop and collect in the bottom of the system near the non return valve?