Good morning from MI folks!
Looking to get some opinions on RO line pressures and booster pumps. A little back story on what I’m running into: our water out of the tap here is at a really high TDS, 570, and I just installed a BRS 200gpd water saver kit on my existing RO system. Due to the high TDS source water and the nature of running two membranes in series, I’m getting about 13 TDS (97% rejection rate) after the membranes, but before the DI stages. After the DI stages, I have 0 TDS.
My question is I have around 70psi/4.8bar of line pressure coming into the RO system. Would it be worth the additional cost to add a booster pump to bump the pressure to 80psi/5.5bar to get a bit more efficiency out of the membranes? Just trying to cut down on DI resin usage as much as possible.
I’ve though about running the membranes In parallel to reduce the TDS, but the high cost of sewer/return water here prevents that. I’ll most likely be running them in series to avoid excess waste water down the drain. Thanks for any thoughts on this!
Looking to get some opinions on RO line pressures and booster pumps. A little back story on what I’m running into: our water out of the tap here is at a really high TDS, 570, and I just installed a BRS 200gpd water saver kit on my existing RO system. Due to the high TDS source water and the nature of running two membranes in series, I’m getting about 13 TDS (97% rejection rate) after the membranes, but before the DI stages. After the DI stages, I have 0 TDS.
My question is I have around 70psi/4.8bar of line pressure coming into the RO system. Would it be worth the additional cost to add a booster pump to bump the pressure to 80psi/5.5bar to get a bit more efficiency out of the membranes? Just trying to cut down on DI resin usage as much as possible.
I’ve though about running the membranes In parallel to reduce the TDS, but the high cost of sewer/return water here prevents that. I’ll most likely be running them in series to avoid excess waste water down the drain. Thanks for any thoughts on this!