Booster Pump for RO/DI?

[tang_man_montreal]

Are any of you using a Booster pump with your RO/DI units? I understand that aside from providing you with a high amount of water when lack of water pressure is a concern, it also helps with the rejection rate and thus increases the life of you Ro filter unit.

I currently have a AquaSafe Canada 100gpd unit, and was thinking of getting the Aquasafe Booster pump shown here:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2359518210&ssPageName=STRK:MEWA:IT

Can anyone provide feedback regarding their booster pumps and if they are indeed beneficial?

Thanks!

[tang_man_montreal]

^

[reefmutt]

They definetly work. They give higher flow rate through the membrane and better purity of water because at higher pressures, r.o. membranes are more efficient. But I don't know if they prolong the life of the membrane- I don't see why they would. You still get more and purer water with a booster, though

[Aqua]

If you have decent water source pressure I don’t think you will see real benefit of having one.
If you decide to get one than I will suggest that you get some good earplugs for everyone in the house. These pumps are damn loud.

[tang_man_montreal]

Thanks guys...

I hadn't thought of whether they'd be loud or not... That's a good point.

[newguy]

For the pump listed above, would you need some sort of pressure switch to turn the pump off when your storage tank is full? Could you use this pump without a pressure switch?

[tang_man_montreal]

As stated by Ed from Aquasafe in an email that I recevied from him, the pump is not meant to be run continuously, and as such will require some automation to prevent pre-mature failure.

This is not a problem for me, as I use a DIY RO/DI controller that I made for myself to control an electronic solenoid. I can control this pump along with the current solenoid so that when the solenoid is engaged to open water, the pump would also engage to boost pressure at the same time. :)

A simple pressure switch like the Kent floatvalve kit would not work with this booster pump.