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Just spilt a rather large blob of radiator sludge on a light coloured carpet, any tips for removing it? I heard power flux works, but i seriously doubt it? :shock:

valves closed? Pin stuck on the thermostatic rad valve? (take the head off and wiggle the little pin up and down with a pair of pliers, not too hard tho!)

problem with sensor or partially blocked heat exchanger

Do you mean how do you drain down the individual radiator and replace it with a towel rail, without having to drain down the whole heating system? you cant! :twisted:

hmm strange, because surely it wouldn't have been able to ignite if the air pressure switch wasnt making?

pump overun on low water content boilers, thats why the pump runs when nothing is calling

1 cheak that where it bends over the tank it isnt submerged in the water in the tank 2 where it runs horizontaly try to prop it up so it runs more vertically up towards the tank so the air can escape out of the vent, may be that its drooping so air cant escape and causing air lock

3-4 days for a straight forward boiler swap!? hahah, more like half a day to a day if your flushing it all, about £500-600 labour where i work (an thats a decent wage!)

1 thing to cheak that can cause the taps to run dry after a while is that the open vent (the pipe that comes off cylinder at top and they "hooks" over the cold water tank in the loft) isnt submerged in the water in the tank. Could have been too long and water in tank risen due to faulty ball...

To be honest best advise for you (since im guessing this kind of thig isnt your forte) is to call a decent plumber out to sort out the dodge piping!

There must be a tee off that pipe from the open vent pipe (the one coming off the top of cylinder) how far up is it?

have you got solid floors, that why the hot water pipe is going back into the loft? It must have been like this since it was first fitted? :o

an you wonder why you have poor pressure when the waters traveliing about 6foot back into the loft before dropping down again? :lol:

Well £2500 is to much for a straight boiler swap round where i live, your looking more in the region of £1500sh Just get more quotes an compare prices, find best one with someone you trust to do a good job! Although if your in london that might be a fair price, never worked down there though!

when you bled the rads, boiler pressure would have dropped, just add some more from the filler loop (presuming its a sealed system) put it back up to 1.5bar cold.

a tiler friend of mine was using the tile cutting machine, must have slipped because the next thing i know he'd cut off his big toe, ouch

i think they have to be at least 12mm thick if they are to be used round a fireplace/hearth

You could just put the adhesive onto the tiles (a blob in each corner and the middle) instead of putting it on the walls like normal, Just put bigger/smaller blobs on depending on the wall, you might find this an easier option :lol:

can u even use powerflux on gas pipes? thoought it was too corrosive

get the walls skimmed over so there level before you start would be the easist option, or just add more addhisive to the tiles, depends how uneven they are though (that might not be posible) :P