Plumbing 101

June 29, 2008

Air in the System

Filed under: Uncategorized — ndmuscle123 @ 5:09 pm

For the last 12 months I have had Air in the hot water system in my home.
I have sent for Plumbers, and all they say is that it will go in time and then charge me for coming out, but after 12 months I am brassed off with it.
I have left taps open for hours, I have back fed the hot water by connecting the mains cold water to the hot tap to flush out the air.
It works for a short time but then it is back again. I have no leaks that would also allow air in.
Can anyone please help?

Aerators at faucets introduce additional air to the water and when collected in a glass the agitated water appears milky or cloudy.
Additional air can be introduced to city water supplies at the pumping station when air is pumped into the water mains to increase pressure.
In private well water systems, artesian pressure can cause air entrapment.
When water utility companies switch from one deep well source to another, excessive air can develop in the system.
Underground temperature changes in water sources (particularly in spring and fall) cause air to expand.
In these examples, the oxygenation causing the discolored water is unpleasant to look at but clears up in a short time. If not, the water company should be consulted.

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