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    IS IT AN AIRLOCK

    Try this b4 you push mains pressure into hot supply. Get a short length of hose and connect it to the hot tap in bathroom basin. Turn on this tap but close all other hot taps. Blow and suck down the hose and this is often enough to clear the blockage. If not go into the loft and connect hose to...
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    Cold Rads. New Pump?

    I dont think its a balancing problem you have if all worked well for a year and now you have the a proble. Just because the pump is rotateing it does not mean it is working correctley. Try this . feel the pipe on the inlet side of the pump to see how hot it is, then feel the pipe work on the...
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    Fitting a shower cubicle

    Look at any of the on line plumbing suppliers and they will list shower tray sizes. Standard sizes are 760mm sq , 800mm sq and so on. The tanks in the loft should be redundant. To check this turn off the cold water main at the stop cock and then see if any of your cold taps still run, or if the...
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    Pipes Under floor

    Presumabley you have a wooden floor on joists. I would lag the pipes as the benifit you will achive under the floor from 2 x 10mm micro bore pipes will be little to nothing and the danger of them freezing if the heating is turned or fails in the winter months outways any benifits.
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    Powermax Combi boiler

    What model Powermax is it? It could be the blender valve, I have changed two in as many weeks for diffrent customers.
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    Some rooms hot some rooms cold

    Do you have thermostatic rad valves fitted. If not how old is your heating system
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    Micro bore central heating pipes

    If the joint is now tight I would not try to tighten it any more as you could make it worse. If you dont want to drain down try Fernox external leak seal. Its a clear silicoln type mastic and works very well on small leaks
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    direct comination celinder can i pump

    If you add a pump you need to find out how much cold water storage you have as most pump manufactures will quote a figure of say 25gal cold water storage for the pump to operate corectley
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    moving a radiator

    You do need to drain down but it is easy. Turn off the boiler and isolate the electrical supply. Find a drain cock on one of the ground floor radiators. Drain down at this point. Open one or two air vents on the radiators upstairs to allow air in. When the water stops open the air vent on the...
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