Originally posted by REV. chuck@Jan 9 2009, 10:36 PM~12659052
which is better to have more psi or more gallons?
and just out of pure curiosity
why doesnt anyone run the air from the dump valves back into the tank?
Well if you are runnin a nitrogen bottle or somethin-- then of course more PSI- cause if you got a bottle with even jus a 1000psi in it-- and run it at 150psi on the regulator-- then it would break down and last alot longet than say a 20 gallon tank at 150psi. NOW-- of you run 10 gallons at 150psi compared to a 20 gallon at 100 psi- the 10 gallon would be more efficient -since more pressure is used in lower spurts.
Im not sure if Im makin this make sense to ya-- I hope this might help a little bit.
As far as dumpin the air bac into the tank-- it doesnt work because of the pressure needed to go bac in the tank.
If you tank is at 150psi- and you try and dump the air into it--- but the air bein dumped is only comin out at anything less-- then it wont allow it to force itself bac into the tank. You will hit the dump and nothing will happen.
Now say your tank is almost empty- with lie 25 psi in it- and then you dump it and the air bein dumped is comin out the dump valve at 50 psi- then it would go into the tank-- but that cant be done consistantly-- it would only work when the tank is lower than the bag dump pressure- which would be a waste of time to try and run solenoids to change the dumpin direction....