single check valve

[dotto]

Hi all!
Hot water difficult to regulate when both cw and hw taps are opened in the kitchen ( mixer tap). Hw runs on indirect system ( hw comes out of hw cylinder). I suspect mains cold water is pushing hot water back when both opened. Is it ok to fix a sc/valve under the kitchen sink in the hw pipe to prevent that happening? Thanks 4 your advice.

 

[seco services]

yes

 

[poolebybirth]

it is a Water Regulations requirement (law) that mixer taps with different pressures (ie mains cold and hot water from a cistern) - that mix water IN THE BODY, to have single check valves installed on BOTH the hot and cold pipes. this will stop your problem though and satisfy the Regs!

 

[dotto]

it is a Water Regulations requirement (law) that mixer taps with different pressures (ie mains cold and hot water from a cistern) - that mix water IN THE BODY, to have single check valves installed on BOTH the hot and cold pipes. this will stop your problem though and satisfy the Regs!

Thank you guys