Hi there. I'm trying to work out how to isolate the water in my flat, so I can fix a leaking shower tap. My flat has a heating interface unit (HIU), which is being fed by various pipes - see photo. I'm not sure though what pipes I should / can isolate to stop the flow, can anyone provide any advice? Cold water is simple, there is a lever labelled for 'cold water isolation valve', which works fine. However, there's no equivalent for hot water, and I'm a bit worried about just turning them all off as there's quite a bit of pressure in the system. I can't find any valves on the pipes leading to the shower to isolate, so I need to do this centrally. Thanks for any advice.
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2nd from the left
Red tap label
Left to right
Cold water in
Hot water out
Main boiler flow in
Main boiler return out
Rads flow
Rads return
Red tap label
Left to right
Cold water in
Hot water out
Main boiler flow in
Main boiler return out
Rads flow
Rads return
Reply to Isolate water to heating interface unit (HIU) in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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