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I have an open vented indirect system and have been plagued with air locks for years everytime I turned on my pump to heat the house, so I eventually called in a plumber because I was worried about stripping the nut from constantly letting the air out and he fitted an automatic air vent and...

please forgive me if this is the wrong forum etc but a while ago i spent 4k on a city and guilds that isn't worth the paper its printed on but i didnt find that out till it was too late and i'd bought a load of fittings are there any plumbers in the durham area that would be interested in buying...

i have a gravity and pump fed indirect system (no 3 port valve) can anyone tell me why it would suddenly start sucking air? some time ago i removed the sludge from the system "it was bad" and ever since i have had to take an air lock out at the top tee return to the f&e tank in the loft average...

I have a bog standard indirect gravity and pump fed system with no 3 port or motorised valve i:e c.h has priority. I'm constantly getting air locks which stop the water in the cylinder from heating. so no domestic hot water. I've taken air locks out of the nearest and furthest rad pipes...

i have a gravity and pump fed indirect system and the "council craftsmen" who installed it have piped it to prioritise the central heating ie: no 3 port or motorised valve so the rads upstairs get instantly hot but if i put the pump on timer to warm the house prior to getting up the domestic...