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I had what was small in my CH system & was advised to try CH leak sealer (a bit like the old RadWeld stuff for car radiators) as all my pipes are behind walls. To cut a long story short I now have globules of what I think is the leak sealer stuff floating in my F&E tank - this has me worried...

Sounds like you've got a very similar system to me as I have a Suprima too. There should be a drain valve next to the boilermate. You can drain at the bottom of the radiator but it takes ages. The drain should exit outside & all you have to do is make sure nothing is in it's path & open it...

I think it's the pump on the return leg, sending water back to the boiler. The store isn't getting warm but the boiler isn't firing properly (on for 2 mins, off again saying it's reached temperature). Potterton Superima 30L So the pump that's connect to the return pipework is pumping...

Thanks guys Bab - That's how I think one is kaput as both pumps are turned to max (they are Grundfos pumps) but I can really only feel running vibration on one of them but I thought that was a very unscientific test but the simplest methods are sometimes the best....... PS Yes it's a...

Funny you post about this because I've got an identical system & I've just done it. Close off the cold supply to the f&e tank (normal tap looking thing that should be next to your boilermate and feeds the feeder tank). Shut the boiler down. On my system I have two drain points - one next to...

Is there a way for a normal plep like me to test if a CH pump is working ? I suspect one of mine is kaput.

I've bleed the two pumps that situated next to the tank - the heating flow pump and the one that is on the return back to the boiler. I did this by turning the screw in the middle till liquid come through - Still no joy though, really clunky to the point I think my pipes are coming off the wall...

I've had major problems with my CH (and HW ) and have spent on £160 to get not very far. To cut a long story short system has been drained,cleaned and filled again. The problem I have now is 1) The boiler won't fire for any more than 2 mins before telling me that it's reached temperature &...