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Mon 5 Nov, 2007 02:36 pm
I want to add a boost pump to increase my pressure from 39psi to maybe 70psi.
Any recomendations? What about these ones that run at variable speed and dont need a storage tank..any good?? Made by Davey very pricey but is this the way to go?
I've already tried the cheap harbor frieght route (80bucks for a 1HP pump) bu the think sprung a leak at the pump gasket when it hit 70psi and the small diaphragm tank was attached with a garden hose looking gasket that I could never get to sea well and as far as I'm concerned the thing is junk.
Re: Whole house boost pump advice???
kb9nvh wrote:I want to add a boost pump to increase my pressure from 39psi to maybe 70psi.
Any recomendations? What about these ones that run at variable speed and dont need a storage tank..any good?? Made by Davey very pricey but is this the way to go?
I've already tried the cheap harbor frieght route (80bucks for a 1HP pump) bu the think sprung a leak at the pump gasket when it hit 70psi and the small diaphragm tank was attached with a garden hose looking gasket that I could never get to sea well and as far as I'm concerned the thing is junk.
Is your place on city or town services, KB?
Re: Whole house boost pump advice???
I just installed one I bought a menards. Its 3/4 hp and requires no pressure tank. It wa 300 bucks.
My impressions are that it works well. I also think that a pressure tank would benefit any system. This runs whenever someone isusing water and gives me up to 80 psi but if many showers are going at once then I get about 60psi.
The system is left pressurized to 80 and then drops to 45 before it kicks back on and this happens quickly since there is no pressure tank.
Getting used to the 5 second delay in TOP pressure is something I think it tollerable. Once running the things a champ
I"m on city water that sits at 39psi.
Is your place on city or town services, KB?[/quote]
I thought that it was really hard on pumps to cycle a lot like this situation would obviously create. Are these types of pumps specially made for this application? What's different about them that allows them to cycle so often?
Once the pressure falls to the cut-in switch setting, he said 45 psi, the pump runs constantly until the water use stops. That allows the pressure to increase to the cut-out switch setting of 80 psi. So cycling is greatly reduced. All submersible and jet pumps used in residential applications are rated as continuous duty, meaning they are capable of running constantly. Running constantly can use less electricity than cycling them on/off, which kills pump motors and it allows him to have constant water pressure instead of it fluctuating up and down constantly.
A CSV (Cycle Stop Valve) is a great way to obtain constant pressure and they are very affordable.
I think there's a cycle stop valve built in or something like it. The pump remains running for 15 seconds AFTER flow stops. The pump sense flow and does not turn off no matter what (except overheating). I think the only thing I could do to keep it cycling less is to put in a diaphram tank.
Gary Slusser wrote:Once the pressure falls to the cut-in switch setting, he said 45 psi, the pump runs constantly until the water use stops. That allows the pressure to increase to the cut-out switch setting of 80 psi. So cycling is greatly reduced. All submersible and jet pumps used in residential applications are rated as continuous duty, meaning they are capable of running constantly. Running constantly can use less electricity than cycling them on/off, which kills pump motors and it allows him to have constant water pressure instead of it fluctuating up and down constantly.
A CSV (Cycle Stop Valve) is a great way to obtain constant pressure and they are very affordable.
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