- 150 GPD Reverse Osmosis Membrane
150 GPD membrane features a 98% rejection rate at 65 PSI which makes it the most commonly used membrane when speed is the primary importance. If you require faster water production and have good water pressure this is one of the better options.
BRS generally recommends the use of the 75 GPD DOW membranes because it offers 98% rejection at easier to obtain water pressures. The higher rejection will result in better quality water and lower DI resin consumption.
Flow and rejection rates are based on the following:
- 550ppm soften water
- 65 PSI
- 77 degree water
- 15% Permeate Recovery
- Data taken after 30 minutes of operation
It is very important that the water pressure going into the membrane be at least 65 PSI or the membrane will not function at specified rates.
Thought I was upgrading..... By Q on 4/4/2018Q wouldn't recommend this product to a friendSo I recently bought the 150gpd membrane to replace a 75gpd membrane. The time to make water was taking to long for me. This was a mistake. The new membrane AFTER the DI is kicking out 7-10 TDS(As a side note- I replaced all the media when I initially purchased the 150gpd membrane). The 75gpd membrane was 0 TDS after the DI. The even more aggravating part was when I contacted BRS they were very helpful in trying to identify the issue. Re-seating the membrane did not work so then they asked me if I had a flow restrictor on. As it turns out, I did have one from when I purchased the 75gpd membrane to ensure I had the right pressure going through the system. At the time it was marketed to me as being rated for a 75gpd membrane. So after explaining this they told me I needed the one rated for the 150gpd membrane. So I order it....get it in the mail. Its IDENTICAL to the one I already have....and guess what....the TDS after DI is still measuring 7-10. The TDS coming in is just under 200 before running through the RO/DI system. So I am not convinced the load is to heavy and because of the fact that the 75gpd membrane handled the load without issue.
SO do I have a bad membrane or does the 150gpd need more restriction than the capillary 800ml one sold to me initially as a 75gpd restrictor and then resold to me a second time as one rated for 150gpd membrane? Do i go back to taking half a day to make water with the 75gpd membrane?
The worst part of this experience is that BRS is my go to spot for things.....NEVER had a problem with shipping or any other product. Now I dont know what to do? Call back and get something else shipped to me, wait for it to arrive, and hope it fixes the issue? I just want to know why I am not getting 0TDS after my DI resin. Feeling frustrated :-/
Performance is 5 times worse than the 75 GPD By Kevin on 8/19/2017Kevin wouldn't recommend this product to a friendI replaced the 75 GPD membranes on my 6 stage BRS + Water Saver system with these 150 GPD membranes. I was getting 3-6 TDS from the 75 GPD membranes. After the replacement and letting it run for well over an hour, I'm still getting 15 TDS coming out of the RO system. This is just going to kill the DI resin. So much for this being a good investment.
Best Bang For The Buck! By Forsaken77 on 2/16/2017Forsaken77 would recommend this product to a friendI have been using this membrane for over a year and get 1 TDS on the product water, before the DI resin.
I split mine off the washing machine valves, both hot & cold, using a regular garden hose splitter. I then used a "Y" hose meant for washing machines to combine both the hot & cold into 1 output. So 1 leg of the hot & cold goes to the washing machine and the other leg of each splitter is combined into 1 output that connects to a short, food grade garden hose. That connects to the RO/DI system.
I run the GE premium .6 micron sediment filter with a 1 micron carbon block, both sold here on BRS.
My TDS from the tap varies between 35 and 80, but comes out of the membrane at 1 or 0. I have 80 psi going into the membrane with no booster pump and fresh pre-filters. The key is to flush the membrane (mostly before) you make water. If you have the 3-way tds probes connected inline you can watch the tds get lower and lower while flushing. Obviously it's good to flush afterwards, but I use one of the auto shutoff kits to prevent over filling and that usually stops the water before I get to it. I'd rather that than ANOTHER flood.
But BRS sells a flow restrictor with a valve knob so you can open up the flow just by turning the knob. If you're new to RO/DI setups I would HIGHLY recommend installing the auto shutoff kit.
Also, just to let some people know, you CANNOT run these membranes without carbon before it. Chlorine and Chloramine will kill the membrane. I made that mistake in the beginning when I was rinsing a new membrane and thought I'd bypass the pre-filters. That's a no-no.
This membrane is great if you have the pressure. There's no doubt that I am getting more than 150gpd. That's at 65psi. So at 80psi this membrane flows.
it works By paul on 1/13/2017paul would recommend this product to a friendit works like it suppose to. you do like mention previous post you need a boster pump
Number 1 in the industry By stephanie s on 6/6/2016stephanie s would recommend this product to a friendI have had my last one for 10 years. Decided to replace this one because it was starting to leak. As long as you run water though it before and after you make water it should keep 10+ years! BRS is great at having products like this at hand that they will ship that day or next.
Perfect By Randy on 7/19/2015Randy would recommend this product to a friendI purchased this to replace my old one and it has surpassed my expectations! This is a great product!
YOLO By Cookie P on 3/5/2014Cookie P would recommend this product to a friendWorks as it should, no problems installing, no leaks.
it works well By paul on 7/10/2013paul would recommend this product to a friendit works very well.
Insane in the membrane By Corey on 11/23/2012Corey would recommend this product to a friendWow, this thing puts out a nice stream of high quality H20! Just make sure you have the line pressure to run it. High rejection rate membrane showing 0 TDS out the product line.
Great Membrane for Great Price By Shannon on 7/19/2012Shannon would recommend this product to a friendThis is the first time that I have ever brought this product, as I usually have a 100 GPD Membrane for my tank.
After changing, the water is clear & the algae problem i am having is clearing up nicely, there is no new growth. My RO/DI water was reading extremely high & now it is back to zero ppm.
This membrane is also at a very good price, as others I have priced are much higher. I will defiantly be buying this product again.
Great product By Scott Nelson on 4/21/2012Scott Nelson would recommend this product to a friendThis works as advertised. Crystal clear and pollutant free. I replaced my 75GPD membrane with this and it works as expected. BRS is a great place to get all these kind of materials
Great Membrane But. By Dana on 4/11/2012Dana would recommend this product to a friendFirst I want to thank Lou in tech support He took time with me to make sure I had everything hooked up correctly. I had a 60 gpd. unit before I switched . To make a long story short Check what size booster pump you have. You definitely need the aqua tech 8800 if you want full output. Also if your using a saddle valve get rid of it as you need more volume than it can provide. After those changes the pump will put out 100 psi. if you need it. I also have 50 ft of 1/4 inch tubing in a cooler with 2 heaters to help warm the water need to add more heaters now the flow rate is to fast and comes out a little cooler now. But getting 2 tds. out with 95 tds. coming in. and 125 gallons per 24hrs. I'm sure once I get the water temp up to 75 Deg. it should be very close to 150. Thanks for all the help Guy's
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Will this membrane fit inside a standard membrane housing?
It sure will. Just be sure that you have enough water pressure to meet its higher demands and that you change your flow restrictor to a 150gpd flow restrictor (assuming you don't have a 150 already).
Is this the correct membrane for the BRS 150gpd water saver system.
Our 150 gpd water saver systems will use two 75 GPD membranes back to back.
Can this membrane be installed into one of BRS RO/DI filter kits? As well as getting a newer restrictor to run this membrane, what about the auto flush? Do one have to install new the restrictor before the auto flush?
Is it possible to add another 150 membrane filter to my existing 150 to be able to produce more water? I have a booster and it gives me about 80psi.
I let my two 75 gpd RO membranes dry out while redesigning my setup. They seem to make very little product water now. Did I ruin them? Will they work better after soaking a while? Should I replace them?
Thanks for letting us know. In this situation while you can attempt to run them most likely the membranes will need to be replaced. Feel free to let us know if you have any further questions!
Is this a DOW Filmtec membrane? And if not, who makes it?
Hope this helps!
How often do we change the membrane?
Assuming you treat them nice by keeping up on the prefilter changes, proper flushing, etc, they will generally last 3-5 years and can even last much longer.
I have 75 GPD RO DI 5 stage from Bulkreef, then i purchased the 150 GPD upgrade .....so now i have two membranes , what do I use (2 )75 GPD membrane or (2) 150 GPD membrane ? ? ?
That system would be 2x 75gpd membranes for a total of 150gpd.
I have a 75 gpd 4 stage I bought almost two years ago, will 150gpd membrane fit in my 75gpd housing? And will I need anything else for upgrading to the 150 membrane?
The 150gpd membrane will fit just fine into the same membrane housing. You will need to make sure you also replace the 75gpd flow restrictor with the 150gpd flow restrictor.