Quote:
Originally Posted by 6600DURAMAX
Richard - what do you mean by inverted trap ?
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A sink trap is a U shape. The hose from Hydroboost to pump forms an inverted U shape. The top of that is the highest point in your system. I would turn 90 at hydroboost and route hose under unit. Will help equalize pressures in the hoses going to the unit and should help with bleed back. Yes, getting reservoir higher will help as well. Even with the hydroboost unit or higher would be best if attainable.
Make sure the line from reservoir to pump has a good downhill angle is a necessity, it should not be level or form a trap.