https://www.thehomebrewforum.co.uk/threads/maintaining-mash-temps.90903/#post-971973
Look at post #6 might be of interest.
Look at post #6 might be of interest.
Help making a re circulation pump
- Thread starter rich1985
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Ashman
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Although the LED driver controlled the flow pretty well the controller or the pump screamed loudly (very annoying sound) and I lost some flow at maximum. Anyway,Well I was thinking I might just restrict the pipe by mechanical crimping? I’m too tight to buy a 1/2 ball valve. Planning to use the sight glass tube as the overflow drain as I hacked a connection to the tap. Also Added a slot for the solar pump mounting.
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Andy_K
Active Member
What’s the best power supply for a solar pump?
Depends how/if you want to control flow. I use a Guagemaster model railway controller to vary the speed of the pump. They’re a bit expensive new but you can pick them up on the bay. Others prefer to run at 12 Vdc and control flow using a tap.
Andy_K
Active Member
So would that be a car battery?
Yes, just get the polarity the right way round. They don’t run if the polarity is reversed.
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A friend wrote an article about this very problem in our local newsletter. You can read it here in this link : The Pump* – DIY Build
