Replacement kitchen mixer to install.
Mains fed.
There's a small undersink water heater.
So, can I just shut off the water and disconnect the pipes to the tap as usual?
The heater has a red canister hanging off it - pressure vessel I presume - with a gauge showing 5 bar. Atop the heater there's a red knob, when I turn it there's a hiss and the pressure drops a bit, then after a few mins it recovers.
Should I depressurise it before starting?
And afterwards do I need to repressurise it - somehow = or does the mains pressure do that for me?
I read the FAQs in the boiler section, is it the same? Don't see anywhere to attach a pump, but I haven't dismantled the cupboard yet.
TIA.
Mains fed.
There's a small undersink water heater.
So, can I just shut off the water and disconnect the pipes to the tap as usual?
The heater has a red canister hanging off it - pressure vessel I presume - with a gauge showing 5 bar. Atop the heater there's a red knob, when I turn it there's a hiss and the pressure drops a bit, then after a few mins it recovers.
Should I depressurise it before starting?
And afterwards do I need to repressurise it - somehow = or does the mains pressure do that for me?
I read the FAQs in the boiler section, is it the same? Don't see anywhere to attach a pump, but I haven't dismantled the cupboard yet.
TIA.