Expansion vessel question

[reneel]

Hi

How many pumps on average will be ok to recharge an expansion vessel (3 bed standard size house)? As my pressure gauge on my foot pump isn't working


Thanks for your help all

 

[Dan Robinson]

Hang on - let me get my piece of string.

 

[reneel]

from complkete flat, what's the average? roughly?

 

[Corgigrouch]

Single barrel foot pump? double barrel foot pump? Standard size bicycle pump? Compact size bicycle pump? ...... Gizza clue

 

[reneel]

single barrel foot pump sorry!

 

[gaswizzard]

Will all depend on whether vessel is flooded with water or not , go get a gauge.

Will be looking for around .7 bar pre-charge pressure.

 

[Burnerman]

EV's have a car type schrader valve on the top...press the centre and if water comes out, waste ye not your time......
Aim for 10 psi with the system depressurised - and how many strokes with the foot pump depends on the size of the EV!
John

 

[reneel]

got 2 gauges, neither move! no water comes out, a bit of air did but hardly any, how comes the gauge doesn't move?

 

[Corgigrouch]

'Cos there is no pressure to measure.... That's why the pump..

There is a sticky on repressurising the EV in the FAQs

 

[reneel]

no even when i pump, the gauge doesn't rise at all!! any recommendations for a decent gauge?

 

[MickyP10]

It's April, right? Ha ha, ya got me...

 

[ChrisOxford]

I use a cheap digital car tyre gauge off eBay

This will read down to 0.1 Bar (just), so is ok-ish at registering the 0.5 Bar or so required.

Many analogue ones and really cheap digi ones won't do at these low pressures.

 

[misterdubya]

Another Troll