Pressurizing high pressure aero

shawnery

shawnery

Well-Known Member
Did I screw up and get the wrong pressure switch because once the pressure in the system gets up to 80 it turns it off instead of it turning the system on when it gets down to 80?
 
Another thing, the Solenoid valve, pump and pressure switch all come pre wired. The other issue is, instead of the Solenoid valve coming on with the timer it's only turning on with the switch instead of just the pump turning on and off with the switch?
 
So would I be correct in believing I need to wire the Solenoid valve separately to the transformer? I assume this setup is a little off since it was produced for an RO system. The switch is controlling both instead of just the pump.
 
shawnery said:
This is the pressure switch

AquaTec Tank Pressure Shut-off Switch 80 psi 1/4" Quick Connect RO Reverse Osmosis https://www.amazon.com/dp/B00H0GUSJU/ref=cm_sw_r_cp_apa_WDm0BbTM6Z6TC
Click to expand...

That pressure switch is adjustable, but you wont be able to get it to go higher than 80 reliably without a longer set screw. Even then they don't work properly all the time, sometimes they won't switch off. So remember to set your pump's bypass correctly so you don't damage anything.

shawnery said:
Another thing, the Solenoid valve, pump and pressure switch all come pre wired. The other issue is, instead of the Solenoid valve coming on with the timer it's only turning on with the switch instead of just the pump turning on and off with the switch?
Click to expand...

Modify it to suit your purposes.
 
I'm still confused, sorry, it's an idiot day for me.

I thought the pressure switch was supposed to turn on the pump when the pressure drops below 80psi, which it is doing. But isn't the entire point of having an accumulator tank to get the pressure up to 100 to 120 psi so the pump only comes on when the accumulator gets below 80psi? How do I get the accumulator tank above 80 if the pressure switch is turning off the system at 80psi?

I'm lost?
 
To get the 80-120 swing you`ll need an adjustable pressure switch capable of a 40psi differential. You also need to set the tank air precharge to 78psi. Be sure to check what the safe working pressure of the tank is ;)
The solenoid should be controlled by a cycle timer. The pump and pressure switch charge the tank.
Dont go wiring a 12v solenoid into a mains output cycle timer cos it wont end well ;)
 
Last edited:
Thanks everyone, I got it figured out, finally.

I want allowing the pressure to get low enough to turn it back on. Now I've got the system setup to have the system primed to 100psi and to turn back on at 80psi. Then I powered the solenoid separately to the transformer. So now the entire system turns on with a cycle timer but the switch only turns on when the pressure drops.

Thanks again.
It's amazing how light the water vapor feels, like it's not even there.
 
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