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Any thoughts on the above? Should I be looking to cut my losses with Wilo pump? If so how do you calculate the correct rated pump for your house (I'd probably go for a Grundfos)?

[/url] We fitted an air separator this weekend (to the pipe section just before the pump) but unfortunately it hasn't improved the sound of air around the pump (the pump sounds like it has trickling water going through it when it's running)! The system does get hot but there is a vibration...

Well this morning we drained down the system (with the 2-ports open), re-filled (again with the 2-ports open), drained all the rads but there's still a gurgling round the pump and a ticking noise from the central heating loop (if you turn on just the hot water circuit you don't get the noise in...

No I don't think he opened the 2-ports, we'll drain it down in the morning and try again with the 2-ports open.

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...

Pump (under the F&E cold feed and vent), 2-port valves underneath.

F&E cold fill on left, vent on right

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...

Cheers Simond, the tap take offs are below the header tank, at least 2 metres.

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...