Isolating bathroom hot and cold supplies - no isolation valves

[600rob]

Im currently renovating my bathroom and need to isolate the hot and cold supplies to the taps/wc etc.


The existing pipe work doesnt have any isolation valves so i can shut off the mains and there is also a large cold water tank in the loft with a gate valve that i can shut off.

For the hot water, there is only a cold feed tank in the loft, also with a gate valve.
If i shut off the cold feed to to the cylinder then drain down the tank(or just open the hot taps til water stops running)

I should be able to then go ahead and disconnect the taps and do the work i need to to right??
or is there anything im missing?

(will also fit iso valves in the bathroom while im at it)

oh its a open vented system/cylinder system (not sure the correct name)

DSC_2051

• 600rob
• 28 May 2019

 

[denso13]

If i shut off the cold feed to to the cylinder then drain down the tank(or just open the hot taps til water stops running)

Yes, the tank won't actually empty but just run the hot taps until they stop.

 

[600rob]

cheers denso