Latest test attached to the regulator return port with "3/4 ID tubing at '4 long into fuel jug - flashes to 11 1/2 PSI and settles to 6 PSI in 1 second or so. Immediately re-attached return line to the cell and got the same results. I even loosened the external adjust on the bottom of the pump with No Change.
The Pump? Does the pump have an internal pressure regulation even when the external bypass is blocked? The Regulator - even though I replaced the regulator diaphragm?
Thanks Again, Craig
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