Troubleshooting milky hot water problem. Milky or cloudy look of your hot water, coming from a domestic hot water system is not a problem, it is not harmful and has no health concerns, but it might worry some.
The first question before trying to do any repairs is to ask yourself, why the hot water from the faucet is milky and has a cloudy appearance?
The main cause of the cloudy appearance is the presence of the additional air (dissolved oxygen and other gases) in the plumbing system. There are several reasons how the extra air got in the plumbing system, and further through the heater and a tap:
As you can see milky look is actually not a problem. So when it comes to troubleshooting and repairs – don’t worry, wait, as it takes time for bubbles to clear up, and the unpleasant milky look inside your glass of water will disappear.
Keep in mind that cloudy or milky hot water is not harmful to you, it represents the air bubbles, and once they rise to the surface, they disappear so as the milky hot water appearance. Also, this “issue” is not related to the hot water line only; cloudiness can be found in cold water line also, where it dissolves faster than in the warm environment. It can be visible in both new and old heaters equally.
Please describe the problem in details including the type of water heater and brand/model.
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