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johnb

hi zuumah why do you need to clean system john

johnb

hi doug , do you mean push fit if so and you follow simple instructions they are great don't be afraid all the best john

johnb

hi sam you need probably 12/15 kw to heat your house from any source including h/water there is no argument about this it is simply a question of price per k/w as all stored water is today stored in very efficient cylinders the losses per day are not really in the equation ,however you need to work ...

johnb

hi razzler try reducing cold inlet pressure on cylinder to a level that gives sufficiant pressure upstairs when one two or three draw offs are running or stops the noise which ever comes first all the best john

johnb

hi willy yes these went to the old central htg [rads] but you may still get water trapped in rads not too much but be prepared surely these have been removed all the best john

johnb

hi look in roof all the best john

johnb

hi nicky PS you may have dirt in both ballvalves can you remove and clean best john

johnb

hi nicky im certain its not air more likely too high pressure you say you had a leak under sink maybe the stopcock was turned on after repair further than was normal for your house try turning stopcock off under sink and open it just enough to stop the noise if it does stop noise then check you have...

johnb

hi foz yes you must connect flow to the existing flow find the flow from the old installation as the pump may not have been on the flow if pump is flowing from rads this is the return if flowing too rads it is the flow, also y our boiler manufacturer may require you to fit an automatic bypass valve ...

johnb

hi richard two problems i think , is hot cylinder fed from tank in roof it may not be high enough and do you have a 3 way electric valve between boiler and cylinder there should also be a pump is it working,if it is then you may have boiler problem . does boiler supply c/heating does this work all t...

johnb

hi tom you need a pressure gauge that fits on washing machine outlet screwfix around Â£40 i think check pressure at 3/4 times of day this will give an average pressure and using a timer get the flow by timing say 30 seconds into a bucket count litres in bucket multiply by two = litres per minute or ...

johnb

hi andy in short yes you must fit to all new fix outlets, basins sinks etc all the best john

johnb

hi razzler if pressure is high or excessive then noise can be a problem as im sure you know . when you say you have a pressureized system do you mean the boiler system and where does your hot water come from ie mains pressure storage cylinder or roof tank . is cold on mains all the best john

johnb

hi nickyj is your toilet supply on the mains or roof fed ...on the mains there is not much chance of air entrapment the roof is different ! does this happen to bath / basin best john

johnb

hi how do i seal a dusty red brick internal wall without discoloring or leaving it shiny help john

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how do i seal a dusty wall

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how do i seal a dusty wall