Cloudy Hot Water Coming From Tap

[TerryWaite]

Came across a strange one today, discoloured (cloudy white) water coming from hot tap continuously. It is a Worcester Highflow 440 CDi floor standing combi boiler, the mains cold water to all outlets is clear and fine. The boiler has been recently fitted I understand, but has been running this discoloured water for over a month now.

The property is a large 3 storey preoperty with approx 15 rads. I dont think there is a crossed pipe into the heating pipework as the boiler does not lose pressure when hot tap is on and the quickfill is not connected.

I am a bit baffled to say the least, anyone come across this problem before?

Thanks

 

[Billy Bob Bob]

pour it into a glass,if it clears after a few minutes nothings wrong its just very hot oxygenated water

 

[tamz]

It is air bubbles. Let it stand in a glass and it will clear from the bottom up.

 

[willys warmer]

All down to the physics of heating water, as the other posts say put it in a glass and it will quickly clear. Perfectly harmless .

 

[TerryWaite]

thought it was something more sinister than that thanks alot, howcome ive never seen it before? is it only in certain areas of the country with certain water hardness or something?

 

[Billy Bob Bob]

thought it was something more sinister than that thanks alot, howcome ive never seen it before? is it only in certain areas of the country with certain water hardness or something?

its just a powerful boiler but most 30 kw combis you will get this phenomenon

 

[tamz]

As water is heated it releases air bubbles. As the combi is sealed there is nowhere for the air to escape other than through the tap.

 

[AWheating]

all combis can do this, if you slow the water through the boiler it will get cloudier normally, especially if the boiler has poor hot temp control. One way to put a customer at ease if this is happening is to put it in a clear glass wait for it to clear.

 

[gasmarc]

you can charge them extra for the cloudy water lol