Hello all,
To start off I'm not g3 qualified.
I have been reading around about unvented cylinders imploding in some situations when cold water to them is isolated and hot water tap is opened, often in an attempt to reduce the pressure in the system to carry out some repair on a hot water outlet.
In order to change a tap, a washer, a shower etc is it necessary to drain down the whole cylinder (according to MI's)?
Does a cylinder need a complete drain down in order to temp isolate hot water.
Many thanks
This is a great forum.
To start off I'm not g3 qualified.
I have been reading around about unvented cylinders imploding in some situations when cold water to them is isolated and hot water tap is opened, often in an attempt to reduce the pressure in the system to carry out some repair on a hot water outlet.
In order to change a tap, a washer, a shower etc is it necessary to drain down the whole cylinder (according to MI's)?
Does a cylinder need a complete drain down in order to temp isolate hot water.
Many thanks
This is a great forum.