bjuice

i dug out my relief valve and read the directions..the current shims in the valve is 4 shims open at 18"...3 shims at 16"....and so on..

i think i am going to install this valve and set it to open at 16"...this way i know i am safe until i get a gauge installed...

i feel i cannot go wrong here with the 20" ceiling here....if anything it would not be enough vaccum which doesn't hurt anything as far as oiling is concerned..

thanks again