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Hi,
i'm replacing gate valve on cold feed to bottom of cylinder.
Im also replacing cold pipework in kitchen so turning off mains in kitchen and then turning on both hot and cold taps to drain the hot pipework and also cold pipework in house.
My question is this (i've read elsewhere but not sure if its the case??):
Once i've drained the cold water storage tank in loft via turning the hot taps on, this will then leave a tank full of water in the cylinder, however this will remain as there is no water to push it through and out of the top of the cylinder to taps.
I read elsewhere that once i loosen the compression fitting on the gate valve, to replace it, this will provide an escape route for the water that will be in the cylinder - is this true?
If so, i'll also drain the cylinder aswell - partially or fully?
p.s. the gate valve on cold feed is approx 6inch higher than the top of the cylinder
thanks
i'm replacing gate valve on cold feed to bottom of cylinder.
Im also replacing cold pipework in kitchen so turning off mains in kitchen and then turning on both hot and cold taps to drain the hot pipework and also cold pipework in house.
My question is this (i've read elsewhere but not sure if its the case??):
Once i've drained the cold water storage tank in loft via turning the hot taps on, this will then leave a tank full of water in the cylinder, however this will remain as there is no water to push it through and out of the top of the cylinder to taps.
I read elsewhere that once i loosen the compression fitting on the gate valve, to replace it, this will provide an escape route for the water that will be in the cylinder - is this true?
If so, i'll also drain the cylinder aswell - partially or fully?
p.s. the gate valve on cold feed is approx 6inch higher than the top of the cylinder
thanks
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