Am "rennovating" my bathroom - which looks as if Desperate Dan itsel
originally plumbed-in. At the monet, there is a Shower cubible with a 40mm waste teed into th
40mm waste from the bath. This then goes off into the main soil stac (although I can;t yet trace this run as it is under the followboards). At them moment, when the bath is emptied, water comes up through th shower waste - and whilst it's not in itself a major problem, I want t do it right when I put in the new bath/new shower. I plan to keep th existing shower tray but will replace the bath so it is an ideal tim to sort the waste pipes out.
Is this "siphonage" - and if it is, is there a valveoor fitting tha will prevent it Or does anyone have a "top-tip" to solve thi problem.
many thanks
Ale
-- alexbartman