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Usually it only does this if you were recently running hot water in a nearby faucet. I've seen this happen when the water heater is in the basement below the fixture in question and no water has been drawn at any fixture for a little while. After about an hour of no use, go down to the heater and feel the cold water line where it enters the heater. Is it warm or hot? How far up the cold water line is it warm? To a tee? Bingo. You need a "heat trap" to keep the heat from rising up the cold line. Repipe the cold line with a flex connector that turns 180 degrees back toward the heater then 90 degrees to horizontal (looks like a question mark).

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17y ago
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15y ago

Seems as if something got into your water supply. May be some kind of contamination If it comes out clear but turns redish brown when left exposed to the air it is probably clear iron. That is iron that is fully disolved in the water but which oxidises when left exposed to air. If it is coming out of the tap brown then it could be a number of things. You probably want to get it analysed unless you can isolate the cause!

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12y ago

This occurs when your hot water heater is either broken, disconnected, or has exhausted its supply of heated water. In cold weather, heated water may be cooling in the pipes on the way to the faucet, especially when it has just been turned on.

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16y ago

The faucet is either broken and the inside parts are not turning with the handle or there is a blockage in the supply line.

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Q: Why does your cold water come out very hot at first?
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