brs r/o

carnut · #1 06-14-2015, 11:43 AM

Has anyone used any other R/O membrane other than the dow membrane they come with?

Thanks

Myka · #2 06-14-2015, 02:21 PM

I use their 150 gpd membrane. That's really the only thing I buy from them these days.

FishyFishy! · #3 06-14-2015, 05:16 PM

Quote:

Originally Posted by Myka

I use their 150 gpd membrane. That's really the only thing I buy from them these days.

Did you do the upgrade? And did you use their new flow restrictor?

Myka · #4 06-14-2015, 06:40 PM

This was about 4 or 5 years ago I swapped it out, I'm not sure what the "new flow restrictor" is.

FishyFishy! · #5 06-14-2015, 06:44 PM

I think the standard units are 75gpd. When you buy the 150gpd membrane, you also need the 150gpd flow restrictor with it. I had bad luck with the upgrade, so just wondering if you did too. But you could have purchased their 150gph unit.

Myka · #6 06-14-2015, 08:27 PM

Quote:

Originally Posted by FishyFishy!

I think the standard units are 75gpd. When you buy the 150gpd membrane, you also need the 150gpd flow restrictor with it. I had bad luck with the upgrade, so just wondering if you did too. But you could have purchased their 150gph unit.

Oh, haha! I thought there was some new fancy schmancy flow restrictor or something. Yes, at the time I bought the 150 gpd membrane, the 150 gpd flow restrictor, and the booster pump. I put that into my AquaFX RO unit. I ran it that way for some months, but I wasn't happy with the amount of waste water which was about 1:4, so I took the 150 gpd restrictor out, and put the 75 gpd restrictor back in. This restricts the output quite a bit, it originally was about 1:1.5 (product:waste) and over some years it's now closer to 1:2 I'm guessing, but the membrane is pretty old now. I haven't actually measured it recently though.