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The optimal PSI is between 50 and 65 for a single 75 GPD membrane. Higher will more less rejection and slightly shorter life span and lower will mean more rejection. Feel free to let us know if you have any further questions.
Ideally the membrane will last around 2 years. You will be able to see with a TDS meter on the IN section. The ro should reduce around 99% (with a single membrane) and bring your TDS on the In to around 0-10. If on the single membrane it is higher than 10 after running the unit you will want to consider a replacement. With the water saver version dual membrane the IN TDS will be a little bit higher closer to 5-15 TDS. Feel free to let us know if you have any further questions!
Overall they will function on the same process of TFC however certain membrane which are High Silica can last longer due to the negative effect of silica. The difference between the membrane is not that one will remove more or less rather the life span of the membrane for a specific application. Feel free to let us know if you have any further questions!
A new membrane can be stored for quite a bit of time. The manufacturer puts a preservative on the surface of the membrane which can keep good for quite some time (2+ years). That is they recommend discarding any water produced for the first hour or two when it is first installed. Storage for the membrane should be kept in a cool dry place with a steady temperature.
We have found using the system after Water Softener will improve the life of the unit and membrane. This will not cause the unit to clog any faster than normal. Feel free to let us know if you have any further questions!
Membranes are a standard size so they will fit in any unit. Just make sure that if you change the speed of the membrane you also change the size of your flow restrictor to match.
The RO membrane will remove around 97-90% of the TDS for a good range after flushing this should be typically between 000-010 however it can be higher with poor source water quality. Feel free to let us know if you have any further questions!
Most membranes will be a universal physical size and work in all units. You will need to make sure the GPD rating is the same. If they are not the same you will need to change the flow restrictor on the waste water line to a 75 GPD flow restrictor. Feel free to let us know if you have any further questions!
These membranes are recommended for 50-75 PSI the maximum mount we typically see during flushing is 80 with no negative effect. Feel free to let us know if you have any further questions!
The membranes last quite a long time, typically 3-5 years though if you treat them well (vigilant on changing your pre-filters on time, etc) they can last even longer.
That sounds pretty typical. It is higher at first because of tds creep and will lower as it runs. Non-exhausted DI resin should give you 0 TDS coming out. The membrane itself will typically last 3-5 years, sometimes even much longer. DI resin doesn't really have a "normal" as it is completely dependent on your source water. Monitor the TDS and when it begins to go above 0 then it is time to change the resin. We use a color changing DI resin so this should also coincide with the resin turning from a dark blue/black color to a gold/yellow color.
The unit can handle up to 80psi without issue and it does perform better at higher water pressure. I would go ahead and run it at the 80psi, there isn't any reason not to and performance will only go up.
If you change the size of the membrane without changing the flow restrictor to the proper size your unit will have the incorrect amount of waste water. It will either have too little water which would damage the membrane or too much water, which is just a waste of water (and could decrease pressure). The housings for the membranes themselves are universal. The membrane is what changes the output, though there are some other factors such as water pressure and temperature that do as well.
75 GPD MEMBRANE (99% REJECTION RATE) Hands down the best membrane for our hobby.
Compatible with all RO systems
FILMTEC reverse osmosis membrane elements for home drinking water are the industry's most reliable. Advanced membrane technology and automated fabrication allow these elements to deliver consistent performance that equipment suppliers, water treatment dealers, and residential customers can rely on. FILMTEC elements are shipped dry for convenient handling and long shelf-life. These elements are NSF/ANSI Standard 58 listed. Equipment suppliers can take advantage of FilmTec's Standard 58 listing and participation in the NSF Data Transfer Protocol to reduce costs for reduction claims for their systems.
- Rated at 50 psi
- Will purify about 20% more water than competitive elements rated at 60 psi
1. Permeate flow and salt rejection based on the following test conditions: 250 ppm softened tap water, 77°F (25°C), 50 psi (3.4 bar), and 15% recovery.
2. Permeate flow rates for individual elements may vary +/-20%.
Good quality and does the job By Trailjammer on 10/12/2016Trailjammer would recommend this product to a friendEasy to install. The original in the BRS Stage 4 kit has lasted for years. So we will see how long this one lasts.
Performs well By Christopher on 9/8/2016Christopher would recommend this product to a friendDrops supply water from approximately 150ppm to 3ppm for a solid 18 months. Got 2 years from the same membrane that came with the BRS RO/DI kit but only 18 months from the last 2 replacements. No change in supply water quality and I use the membrane flush kit regularly.
Don't use with Spectrapure MaxCap 90 By John on 8/29/2016John wouldn't recommend this product to a friendTried this with my Spectrapure MaxCap 90. Was getting about 30 GPD. Tried different restrictors, including a ball valve to adjust flow to any level. The most I could get was about 75ml per minute which is 28.5G in 24 hours. BRS tech advice was to try their 550ml restrictor barrel but no guarantees. Not sure how it could get from 30 gpd to 75 gpd. If you try and it produces 75 gpd let me know. It could have been a bad membrane but the tech didn't think so. 2 stars because maybe it actually produces 75 gpd with the BRS RODI kit. It just doesn't do it with the Spectrapure.
Easy to change By MaLi on 8/14/2016MaLi wouldn't recommend this product to a friendI changed my membrane for the first time last night, it only took a few minutes. The BRS guide was extremely helpful and made changing it out even easier.
RO Membrane By Chuck on 8/5/2016Chuck wouldn't recommend this product to a friendits always a good idea to replace with the rest of the filters
Awesome membrane By Mopar1187 on 7/20/2016Mopar1187 wouldn't recommend this product to a friendAwesome product wouldn't expect anything less from best. Always been my good to place..
Great product By Gary on 7/1/2016Gary would recommend this product to a friendGreat product at a great price.
Excellent! By Schwaggs on 4/18/2016Schwaggs would recommend this product to a friendI replaced my tired RO membrane with this one and am very happy! Output and water quality is great! Made 500 gallons with is recently and the output water from this membrane was so clean, it didn't even consume a single DI resin cartridge!
Best bang for buck By Pat on 3/23/2016Pat would recommend this product to a friendIt is the cheapest place to get a RO membrane for the price. If it's labeled for aquarium use they're usually twice the price but the price at BRS is even cheaper than the membranes at my local water purification store
perfect membrane, great price! By Rey on 3/17/2016Rey would recommend this product to a friendGreat price, free shipping and on a quality product, thx BRS!
Great product By adam on 2/16/2016adam would recommend this product to a friendGreat product at a great price! way to go BRS!
Great membrane By Hector on 11/10/2015Hector would recommend this product to a friendYes I will recommend this product this is my 2nd menbrane I own no problem great results & ease to install.