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Author Topic: Should I change my setup?  (Read 3141 times)

hoardac

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Should I change my setup?
« on: September 21, 2016, 07:06:34 PM »
When I built my radiant floor system I really was learning as I went I had not found this forum yet. I had 1 taco 007 f5 pump and that was not enough to push the heat around so I put my spare in series with it and it worked. Eight years later one pump quit looking to see if another pump setup would be better or just keep doing what I have been. I have 11 loops of 1/2 pex from 270 to 300 feet usually no more than 6 on at any on one time. Have glycol mixed to 50 below if that matters. Not really sure where to look for this info other than here. Thanks for any advice.
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RSI

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Re: Should I change my setup?
« Reply #1 on: September 21, 2016, 10:44:54 PM »
If it was working the way you had it, you could just replace the bad pump.

If you want to go to a single pump, you need one with a higher head rating. If two 007 pumps were working ok then I would look for something with double the head pressure.
If you have zone valves on a loops, I would look into a pump like the Grundfos Alpha. It has a setting to run at constant head pressure so you will get the same flow when the number of loops that are open changes.
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hoardac

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Re: Should I change my setup?
« Reply #2 on: September 22, 2016, 08:05:01 PM »
Yes I ordered the new cartridge today I will stick with the way it is thanks.
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