pressure test

[still learning]

bit of a dumb q here but i have never used a pressure tester so....if using say, a rothen £120 type tester on a complete new fit heating system of say.. 8 rads, how much water would you actually need to pump into system to perform a test ??

 

[john.bell55]

Will depend on radiator size, pipe runs. Just ensure there is enough water in the bucket and replenish when it needs it, You are not talking gallons here
Cheers
Jack

 

[still learning]

cheers jack, just didnt know if it needed to almost fill the damn system to build pressure. cheers

 

[birdflue]

you need to fill system to remove any air, air compresses so will give false readings