Quote:
Sounds like a regulater problem. A relay if its failing will burn itself up pretty fast.
Does the Pump itself seem to run at a constant rpm.
The pump seems steady enuff but when I bypass it the pump and. reg. maintain about the same pressures.....like if I set the reg. to 8 psi, the pump shows about the same WHEN bypassed but the minute I plug the bypass, both gauges peg to 15+ psi. 
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