Outdoor solar panel freezing.

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Old 12-15-13, 11:40 PM
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Outdoor solar panel freezing.

I have an outdoor solar panel where the sun heats the water that passes through it and stores it in a tank. The problem I have is that as soon as frost comes the pipes freeze and crack. Because it's all connected to a pressure pump it means that I can't use any water until it's fixed. Apart from shutting it all off and taking the water out is there any way to stop the pipes cracking?
 
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Old 12-15-13, 11:50 PM
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Welcome to the forums.

Does your actual domestic water travel thru the solar exchanger or do you have a circulatory loop ?

You should have a loop..... it should have some type of non toxic anti freeze in it so that it doesn't freeze when the loop isn't circulating or there isn't enough sun to keep the loop warm.
 
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Old 12-15-13, 11:54 PM
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PJ describes a common system but there are also "drain down" systems where the collector drains to a tank in a protected (from freezing) location and the collector only has water in it as long as the pump is running.
 
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