What kind of heater do you have?
Most heaters have a pressure adjustment in them to allow for different placements of the heater, and different pump/filter combinations. Mine is a Raypak heater and it has a simple adjustment for pressure, just make sure that if the water from the pump is shut off that the burner on your heater turns off, if it doesn't you wont have a heater anymore!
Hope it helps.
Bookmarks