having a issue with my meth system.im running a bms with fsb with dual nozzles,nothing crazy.started getting low flow on logs.thought it was the seals.changed the head,still same thing,I had a spare pump and still getting low flow.i was using 7/5 for priming to check psi.i have a gauge installed on the out of the meth pump.is reading 20psi only.Anyone with a bms kit or with some knowledge on if I can check anything else to make sure it's not something else.or does the priming the pump doesn't give full flow.