Water volume low, will pressure booster alone help?

[Dave3333]

Any regular 10 GPM, 1/2HP will do what you need. Something like a Goulds 10GS05. Putting a sub in a storage tank I would also make sure to use a cooling shroud. You can make one with a piece of 4" PVC thin wall pipe.
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Good to know. Thanks for the input on everything and the diagram is very helpful. I appreciate it.