I want the pump to burp tanks 2-10 this should get almost all of the air out.
I think low flow drip emitters & bedding tanks in sand with EPDM below will increase heat transfer through tank walls.
As top of tank will only be about 3' below grade, I think that 3" of EPS above tanks will reduce winter loss.
Parallel would be hard to balance with tanks back filled.
I think that my 2 ton HP evaporator will need about 6gpm. I could use one of my 10W 3gpm 30VDC El-Sid pumps to continuously move heat between tanks.
Last edited by buffalobillpatrick; 10-02-14 at 02:32 PM..
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