loncin interpump uh 2016, bleed valve fitted, pressure gauge fitted. rtt bypass, 16 lpm, 3600 psi. bought from jetmac. this is new, Kenny don't you just turn the nut clockwise or anticlockwise to adjust the pressure you need then tighten lower nut, surely this cant cause any harm. how far do you turn before the nut comes out. is it a case of turning and checking pressure gauge to see what pressure reading is showing. Terry just says turn nut clock or anti clock for your required pressure.
thanks for replying Kenny. do you ever get whirlaways reconditioned.