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.

 

[PlumbBobBob]

When needing to plug a tank outlet, usually find it is hexagonal or internally ribbed so rubber bung is ineffective. What's needed is a mushroom shaped stopper where stem would locate in hole and dome could be pushed against outlet with length of plastic pipe braced off opposite wall of tank.

whenever I come across these ribbed ones I keep a lump of blutac which I use in a latex type glove to stop the hole

 

[Old Account]

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

It's true, I wouldn't trust either but it is what it is .. I would definitely turn it off on the gate valve ... it's 50% chance you will be lucky not long ago I wasn't as lucky and it snapped the gate valve luckily I had one to change it as well as a second gate valve was in the loft so wasn't too bad in the end