turing of gravity hot water

[Mgrant]

Do most people tend to trust the gate valve on the cold feed to a hot water cylinder will turn off and back on again, when wanting to work on the hot pipework, swapping a bath tap no isos. Or turn the cold mains off and drain all tank.

 

[ShaunCorbs]

I won't trust a gate valve, half the time they don't shut fully anyway

 

[chris watkins]

Gate valves are fine, just don't give them too much stick.

 

[Mgrant]

So you'd drain the tank?

 

[chris watkins]

I won't trust a gate valve, half the time they don't shut fully anyway

If they don't hold up then you aren't in way worst a situation anyway, still have to turn off main & drain cistern.

If it holds you have saved all that time & 230Litres of water which is why they are required to be fitted under the Water Regulations 1999.

 

[Mgrant]

I won't trust a gate valve, half the time they don't shut fully anyway

So you'd drain the tank?

 

[Chalked]

Depends on the quality of the valve.
Pegglers, conex or lever valves ar fine. But the cheapo valves aren't worth fitting.

 

[Last Plumber]

I'd use the gate, it is what it is there for, if it busts or jams it's extra.

If it is a quality valve it should be fine

 

[Best]

I don't trust gatevalves on cold & hot supplies. On heating systems they tend to be more reliable as the heating system water doesn't corrode them normally.
I find that even just turning gatevalves off gently and not fully tight off will still often have the gate broken when I go to turn valve on again.
I tend to just bung the tank as it is the same thing as turning a valve off. Obviously I won't leave it like that if I had to leave pipework open, unless I am going to complete the job, - new taps, or tap works etc.

 

[Best]

I'd use the gate, it is what it is there for, if it busts or jams it's extra.

I bet you won't trust using a gatevalve if you are in a rush home, or late for next job?
Could lose you at least half an hour to an hour trying to replace it on a cold tank - and that's if you carry same valve.
The jobs that I have been on that were only to be a couple of minutes to replace a tap washer and I ended up turning into Mr Angry with an awkward gatevalve to replace on a pipe with no movement.