What is the impact of pipe size on the water pressure: even with normal GPM, can larger pipes drop water pressure significantly? and is it possible to measure?
More specifically: I have small 7,500 gallon pool with very small head loss and 2 inch piping. Also, my equipment is about 3' above the water line and, even 2000 rpm (~60gpm) i get very low (virtually zero) pressure on my filter. I have to really crank up the pump to raise pressure on the filter to 5-10.
Just added gas heater (Raypak 156a) and the pressure sensor doesn't register the water flowing through. I have flow sensor on the output of the gas heater to ensure there is a good flow and tried anything between 20 to 60GPM to no avail.
Question: Is it possible that, because of the high location of the equipment (3' above water line) and larger piping, I am achieving good GPM but pressure stays very low for the heater to register? I would think the flow sensor (flowvis) needs a decent pressure for the flap to lift and register flow ; so there must be pressure behind it?
If this is true and, even with the adequate flow, there is little pressure for the heater to register, is there a remedy to increase pressure artificially (short of closing some of the inlets on the return side?)
P.S. once i manually trigger the pressure sensor (electric circuit) then the heater is working, so the problem is the actual physical pressure sensor that is supposed to pop down and push on the electric switch.
More specifically: I have small 7,500 gallon pool with very small head loss and 2 inch piping. Also, my equipment is about 3' above the water line and, even 2000 rpm (~60gpm) i get very low (virtually zero) pressure on my filter. I have to really crank up the pump to raise pressure on the filter to 5-10.
Just added gas heater (Raypak 156a) and the pressure sensor doesn't register the water flowing through. I have flow sensor on the output of the gas heater to ensure there is a good flow and tried anything between 20 to 60GPM to no avail.
Question: Is it possible that, because of the high location of the equipment (3' above water line) and larger piping, I am achieving good GPM but pressure stays very low for the heater to register? I would think the flow sensor (flowvis) needs a decent pressure for the flap to lift and register flow ; so there must be pressure behind it?
If this is true and, even with the adequate flow, there is little pressure for the heater to register, is there a remedy to increase pressure artificially (short of closing some of the inlets on the return side?)
P.S. once i manually trigger the pressure sensor (electric circuit) then the heater is working, so the problem is the actual physical pressure sensor that is supposed to pop down and push on the electric switch.
