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Hi, I'm helping a mate out, trying to fix a problem with his vented heating system. He had to drain the system last week to replace some downstairs rads, since refilling there's a bubbling noise around the pump and downstairs by the boiler you can hear air in the system. The boiler runs and...

Well today I was trying to help a mate out in adding a surrey flange to a vented h/w cylinder, but we can't undo the existing fitting right at the top of the cylinder. Anyone have any tips? And anyone know what size spanner or socket is needed (I think they only way we're going to get it...

I'm writing on behalf on a mate who has a gravity fed hot water system and wants to increase the hot tap pressure throughout the house. The hot water is currently only at head pressure and the bathroom cold supply is also from the cold header tank. What we're considering doing is fitting a...

I've just fitted a nice new sink and mixer tap in the kitchen, but the hot water pressure seems too low to get any decent flow or spray out of the tap, cold water is fine. My HW system is vented gravity, the HW cylinder is the floor above. I assume my HW in the kitchen needs boosting and...