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    sulfur or calcium precipitation?

    I'll assume that your pH isn't screwed up. So first, remember that solubility in water is a function of temperature. At 65F, you can hold about 1/3 of the salts that water near boiling can hold. With that in mind there are always two possibilities when you see precipitation. Either something...
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    DIY Water reservoir chiller

    So your config will be a sandwich that goes air-cooled heat sink, peltiers, water block, pelters, air-cooled heat sink and you are going to put the pumps in a push pull configuration for redundancy? That will probably be ok but not very efficient. Those heat sinks are usually used in server...
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    DIY Water reservoir chiller

    If you are going to use the small elements and have a metal reservoir than you can make this exceedingly simple. Simply stick the elements to the reservoir and then stick passive heat sinks to the other side. It isn't possible to get runaway cooling with these. They have a maximum...
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    DIY Water reservoir chiller

    Peltier elements dont have a lot of cooling power in the end. as long as the room your reservoir is in has reasonably thermal stability, you can just add elements until you hit your target. Insulate the reservoir if it is in a warm room and then just tune your peltier power to hit your target...
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