Hot tap water quality
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Old 02-24-2011, 02:23 AM   #1
boringname
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Hot tap water quality


Cooking instructions always specify using cold tap water. The explanation for this is that the hot water pipes are more corroded and the water from them tastes worse. I once filled glasses from both taps, let them arrive at room temperature and the hot tap water did taste worse to me.

So anyway I'm wondering if there is any thing objective out there about using hot tap water for aquariums. As mild as the Los Angeles climate is our winter cold tap water is cold enough to numb your hands when washing something in the sink. I keep a 3 gallon bucket under the sink with water aging for the next water change but sometimes I need more than 3 gallons of new water and I'm starting to wonder I should use the hot tap water for that extra during the winter.
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Old 02-24-2011, 02:35 AM   #2
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We can only use the cold kitchen tap because everything else goes via a water softener - that doesn't apply to everyone though.

We make RO via an outside tap so chilly in winter. For topping up I use room temp stuff that's just been sat inside but for a water change dropping a spare heater in the bucket is the easiest way to get a large quantity of water the right temp.
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Old 02-24-2011, 02:36 AM   #3
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If it taste worst. We are talking dissolved metal, present in large enough quantities that you can taste it. Eg copper will kill shrimp but great for whisky.

Use at your own discretion.

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Old 02-24-2011, 03:13 AM   #4
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Water heaters are lined with glass, so water that is stored there is not dissolving copper. The water in the copper pipes leading to the faucets can be removed by running the water for a minute or two before using any. So, copper isn't a problem. Hot water doesn't hold much air in solution, which makes it taste bad compared to cold water.
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Old 02-24-2011, 03:18 AM   #5
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If I remember correctly, theres bacteria present in your hot water heater that arent present in cold water lines. They supposedly deplete water quality although im not sure how. I know brewing beer with hot vs. cold the cold was always better.
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Old 02-24-2011, 11:06 AM   #6
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Quote:
Originally Posted by chad320 View Post
If I remember correctly, theres bacteria present in your hot water heater that arent present in cold water lines. They supposedly deplete water quality although im not sure how. I know brewing beer with hot vs. cold the cold was always better.
I wonder if its the same bacteria we use for the aquarium lol


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Old 02-24-2011, 03:17 PM   #7
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Quote:
Originally Posted by chad320 View Post
If I remember correctly, theres bacteria present in your hot water heater that arent present in cold water lines. They supposedly deplete water quality although im not sure how. I know brewing beer with hot vs. cold the cold was always better.
Given that all municipal water suppliers keep a pretty high level of chlorine or chloramine in the water, how do the bacteria survive in the hot water heater? Maybe it is their dead bodies rotting in the water that give the bad taste
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Old 02-24-2011, 03:22 PM   #8
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Quote:
Originally Posted by Hoppy View Post
Given that all municipal water suppliers keep a pretty high level of chlorine or chloramine in the water, how do the bacteria survive in the hot water heater? Maybe it is their dead bodies rotting in the water that give the bad taste
Interesting topic, and I would have thought like hoppy....

http://www.waterheaterrescue.com/pag...r-heaters.html
http://aem.asm.org/cgi/reprint/25/1/72.pdf
http://www.hhs.state.ne.us/enh/IronSulfurBacteria.pdf
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