ive just been to a vaillant t3w sine 18 got to be nearly 30 years old
It was loosing through the prv ,both iso valves turned of without leaking and after refilling the prv apears to have stopped leaking
every screw came out and went back in no problem
probably the best engineered boiler ever
It was loosing through the prv ,both iso valves turned of without leaking and after refilling the prv apears to have stopped leaking
every screw came out and went back in no problem
probably the best engineered boiler ever