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Unread 09/01/2021, 09:19 AM   #2
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Join Date: Sep 2009
Posts: 14,173
The 150 is discontinued as the 230w and 150w were so close in cost and the 230’s outsold the 150’s 10:1. That said, given the head height of 12’ before friction losses, I’d suggest the RD3 230w High Pressure. It’s a 1.25” output so you’d be stepping it down a bit but some of that flow will be going to your frag tank so the loss from the reduction won’t be too terrible. I’d plumb with 1.25” out of the pump to the bottom of the display or even 1.5” by stepping it up to help mitigate some of the friction losses. The larger you go, the less friction loss which is why I’d step up to 1.5” and run that all the way up to the display before stepping it down to 1”.

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