thanks for all replys on previous posts.
ok,sealed systems loseing pressure on a regular basis,things done,new expansion vessel,auto air valve and pressure safety valve changed,exp vessel connector not blocked,pressure only drops not going up.
powermax 155x boiler.
99% of pipes to rads in screed, walls and ceilings no access to these pipes,all rads ok and bleed.
is there a means of pressure testing the rad circuit with a machine to test at a higher pressure than regulated mains water pressure to establish the leak is on that circuit.
boiler is all dry even when cold,no water drops in sump.
they just need to establish if leak on rad system or a pinhole in boiler,they are prepared to rerun all heating pipes on surface but want to establish it is on the rad circuit.
many thanks.
ok,sealed systems loseing pressure on a regular basis,things done,new expansion vessel,auto air valve and pressure safety valve changed,exp vessel connector not blocked,pressure only drops not going up.
powermax 155x boiler.
99% of pipes to rads in screed, walls and ceilings no access to these pipes,all rads ok and bleed.
is there a means of pressure testing the rad circuit with a machine to test at a higher pressure than regulated mains water pressure to establish the leak is on that circuit.
boiler is all dry even when cold,no water drops in sump.
they just need to establish if leak on rad system or a pinhole in boiler,they are prepared to rerun all heating pipes on surface but want to establish it is on the rad circuit.
many thanks.
