when the hot water/central heating system comes on,there is an initial flushing sound .this occurs for the 45 mins on and off.what sounds like water trickling can also be heard.then around 45-60 mins what seems to be gurgling or bubbling happens with then maybe the bubbling hitting one of the radiators.is there an easy way to resolve this?
so far I have bled all the radiators as instructed on my other post with all of them now working a treat.I have checked the 2 tanks (1 small.1 large)in the loft and they seem to have enough water in them.also how much water should be in them and what one does what.both have a copper pipe that goes into each of them should these bee submerged or are they like a vent and suck cold air down or purge hot air out??
any ideas on how to fix this as I am sick of being woken up by the noise
thanks for your help
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