Thanks for all of the ideas. After getting some really good advise from Greg over at Arimitsu Pumps, and I ran it back, turns out it was the check valve on the line out of the gravity feed tank. I tried a new that I got locally, however, its cracking pressure was to low, I was able to order one with a 5 psi cracking pressure and all is 'not' leaking. Thanks again.
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Thanks for all of the ideas. After getting some really good advise from Greg over at Arimitsu Pumps, and I ran it back, turns out it was the check valve on the line out of the gravity feed tank. I tried a new that I got locally, however, its cracking pressure was to low, I was able to order one with a 5 psi cracking pressure and all is 'not' leaking. Thanks again.
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