Booster Pump Hook up

[hillegom]

Funky fish14 does your pump run all the time when plugged in? It should have a pressure switch shutoff so that when the input line pressure gets to say as an example, 60 psi, then the pump shuts itself off. If it runs all the time, it will be working too hard and self destruct before its time.

[Funky_Fish14]

Wouldnt the pressure constantly/repeatedly drop though? I mean, being on a well, the pressure from it bounces between 28psi and about 55psi. I would only have the pump on while filling the tank, and shut it off once it is full. I would think if the pump had a shut-off, it will be on/off/on/off every few seconds to maintain a constant psi reading?

I am simply filling a 60g polyeurethane bin... no pressure tank on the other side. The pump would only be on while the tank is being filled, I'd shut it off manually when the bin is full.

[hillegom]

With your two ro systems, (don't know about the life of your sec. membrane doing this),you are making about 100gpd with about say, 60 psi. (don't know the psi the membrane manufacturer uses to calculate gpd)
100gpd divided by 24 hrs means that you get about 2 gals per hour. The pump you are useing pumps way more than that and has what top pressure? So it is working very hard to keep its top pressure and making a lot of noise.
As power tec has it, there is a high pressure shutoff and a low pressure turn on for the pump. This will let all your components in the system last longer and not be overpressured.
Your well pump turns on at 28 psi and off at 55 psi. Your add on pump for the ro will bring your pressure higher so that the ro membrane can operate efficiently. How high does your pump keep the pressure?
What I read on the net, the booster pump should bring up the pressure to 70-80 psi to keep the maximum efficiency on the ro membrane.