If scorching water is supplied solely by an immersion heater, is there a drain valve at the bottom of the chilly provide pipe from the storage cistern to the recent water cylinder? Nearly all main and lots of minor plumbing operations demand the partial or whole drainage of both the home’s sizzling or chilly water provide. It would help if you didn’t repair the plumbing downside by yourself. • The place is the principle cease-valve, and is there every other cease-valves or gate-valves fitted into distribution or circulating pipes within the system? • Are all chilly water draw-off factors provided directly from the rising major, or are the cold bathroom taps and the WC cistern equipped with water from a major chilly water storage cistern, in all probability situated within the roof house?