I've two large cold water storage tanks in the loft connected to each via one pipe at the bottom of the tanks.
There are two old exit Gate Vales that are seized up, in open position.
There is a cold water 15mm feed to the Ball Cock valve but no isolating valve.
I'm considering replacing both Gate Valves with Full Bore Lever Valves and also fitting one Full Bore Lever Valve to isolate the Cold Water supply to BallCock.
I'm reluctant to use standard isolator valves with the screwdriver slot as sometimes they are tight to operate and the slot can be chewed up in use.
What would you recommend is the best way forwards.
There are two old exit Gate Vales that are seized up, in open position.
There is a cold water 15mm feed to the Ball Cock valve but no isolating valve.
I'm considering replacing both Gate Valves with Full Bore Lever Valves and also fitting one Full Bore Lever Valve to isolate the Cold Water supply to BallCock.
I'm reluctant to use standard isolator valves with the screwdriver slot as sometimes they are tight to operate and the slot can be chewed up in use.
What would you recommend is the best way forwards.