Can a DIYer replace an expansion vessel

[ShaunCorbs]

no got it wrong u mean one bar on footpump, and zero on water guage, then add water to one bar on water guage?

Correct once one bar or foot and no water is draining via drain tap

Remove foot pump close drain tap and re pressurise boiler as you normally would do if pressure is low

 

[EvilDrPorkChop]

Got to remember when they're flat you've got to pump out 8/10 litres of water, so leave drain open while pumping.

 

[compressorman]

Correct once one bar or foot and no water is draining via drain tap

Remove foot pump close drain tap and re pressurise boiler as you normally would do if pressure is low

thanx for that I will let uknow if it works, if not take it, I fit another EV??
Gud to speak to people in the know!

 

[compressorman]

Correct once one bar or foot and no water is draining via drain tap

Remove foot pump close drain tap and re pressurise boiler as you normally would do if pressure is low

a bit late tonite but on my mind?...under the boiler theres two warer controls close together I use to top the water up. The big white key is thag suposed to cut the water off, cus on or off, I can still get water tgru the small white valve. Am thinking cud the water be passing thru into system and spurting out safetg valvd cus I have heard the hiss of water a few times being ejected outside?..try to attach pic of the two valves which are side by side!

 

[ShaunCorbs]

No the key does nothing but divert the water into the boiler

The left white hex turns the water on or off to the filling loop

Only if you leave the left white hex open / undone