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- 13 Mar 2021
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Hi, please please can any one help. I have read lots but may be more dangerous as I have no idea and now have bits of info.
Basically when we turn on any cold tap we get cold water for about 5secs then 20-30secs of really quite warm water before it goes really cold and 'normal' and drinkable.
If we then turn the cold tap on after a short time then we only get cold but if left for,say, an hour, then it happens all over again. We even noticed warm water in toilet the other day.
The plumber has checked lots of things and is brand new but he says it's just the cold water pipes having heat transferred from the hot pipes but based on the amount of time we sometimes have to run the tap for, and the warmth of the water, surely it must be something else. He has also said he had spaced the pipes adequately throughout.
I have noticed the cold inlet pipe to the unvented cylinder gets very warm (26 degrees), especially if not used any taps, toilet etc and that heat rises up the copper pipe but the heat of the pipe feels more like hot water inside the pipe and rising. The plumber says the cold inlet balancing valve has a non return valve in and he even changed it anyway but it still happens.
Could it be this or something else or something to do with the electrics.
Please, please does any one have any ideas and could it be that the warm water is travelling up the cold inlet pipe and in to the cold supply due to too much pressure of something.
I just have no idea what I can do and the plumber has basically said that's how it is. I am also worried about legionnaires disease, especially as have 2 young children.
Thank you for your time. It is honestly really appreciated.
Basically when we turn on any cold tap we get cold water for about 5secs then 20-30secs of really quite warm water before it goes really cold and 'normal' and drinkable.
If we then turn the cold tap on after a short time then we only get cold but if left for,say, an hour, then it happens all over again. We even noticed warm water in toilet the other day.
The plumber has checked lots of things and is brand new but he says it's just the cold water pipes having heat transferred from the hot pipes but based on the amount of time we sometimes have to run the tap for, and the warmth of the water, surely it must be something else. He has also said he had spaced the pipes adequately throughout.
I have noticed the cold inlet pipe to the unvented cylinder gets very warm (26 degrees), especially if not used any taps, toilet etc and that heat rises up the copper pipe but the heat of the pipe feels more like hot water inside the pipe and rising. The plumber says the cold inlet balancing valve has a non return valve in and he even changed it anyway but it still happens.
Could it be this or something else or something to do with the electrics.
Please, please does any one have any ideas and could it be that the warm water is travelling up the cold inlet pipe and in to the cold supply due to too much pressure of something.
I just have no idea what I can do and the plumber has basically said that's how it is. I am also worried about legionnaires disease, especially as have 2 young children.
Thank you for your time. It is honestly really appreciated.