DOW FILMTEC RO Membranes: Where to Buy Them and How to Install Them?

Alright, you want me to talk about my experience with Dow FilmTec RO membranes? Fine by me. I ain’t no expert, but I’ve been around the block a few times with these things, so I guess I can share what I know.

So, a few months back, I started noticing my water was tasting kinda funky. Not bad, just… off. And the water pressure? Forget about it. It was like waiting for a snail to cross the finish line. I figured it was time to change out the RO membrane in my under-sink system. I’ve done it before, no big deal, right?

First, I had to figure out which membrane to get. Now, I’ve tried a few different brands, but I always come back to Dow FilmTec. Why? Well, I did my research like you guys, and I found these “Dow Filmtec RO membranes are the gold standard” words from the Internet. They seem to be the ones everyone recommends. Plus, I’ve had good luck with them in the past. They just seem to work better and last longer. And those words “has the largest stock of genuine DOW FILMTEC membrane elements in the world” also attracted me. Anyway, I hopped online and ordered one up. There are different sizes of these RO membranes, like “8×40 10”, but I didn’t use these for my home. These maybe used for industry.

Once the new membrane arrived, it was time to get my hands dirty. It’s really a easy job. I turned off the water supply to the system, which is always step one, folks. Safety first! Then, I grabbed my wrench and unscrewed the cap from the membrane housing. It’s usually pretty easy to spot – it’s the biggest part of the system. Out came the old membrane. I took a good look at how it was sitting in there before I tossed it, so I’d know how to put the new one in.

Sometimes those old membranes can be a real pain to get out. They get stuck in there good. If you run into that, a pair of needle-nose pliers can be a lifesaver. Just grab the edge of the membrane and give it a gentle tug. And it’s really important that “Take note of the direction in which the membrane was installed”.

With the old one out, I slipped the new Dow FilmTec membrane into the housing, making sure it was facing the right way. They usually have an arrow or something to show you which way the water should flow. I read those words that “The membranes manufactured from Dupont/Dow Filmtec are considered as the most common membranes” so that’s also the reason I use this brand. Tightened the cap back on, turned the water back on, and that was it. Easy peasy.

Results?

• The water tasted great again – clean and crisp.
• The water pressure was back to normal.
• I could finally fill up a glass of water without it taking all day.

I also learned that “Marine water makers use a variety of RO Membranes but the best RO Membrane is by far the Dow Filmtec SW30-2540 Membrane”. Look at that, the price of this thing is not so friendly, maybe it’s really a good stuff.

Look, changing an RO membrane isn’t rocket science. Even if you’re not super handy, you can probably handle it. And if you’re looking for a good quality membrane, I’d definitely recommend giving Dow FilmTec a try. They’ve always worked well for me, and they seem to be the go-to choice for a lot of folks. Just my two cents, though. Do your own research and figure out what’s best for you.