membrane exhausted?

[Proteus]

I've had my ro unit for 2 years and have yet to change the membrane I am diligent in changing the filters and di. The unit never showed a reading over 2ppm.

I have been having some po4. Issues with po4 being. . 08 to.16 after wc then falling. So I tested my ro water and found. 08.

Is this the membrane that needs.to be changed.

[neoh]

08 phosphates in water? That's pretty high! Suggested replacement is every 3-5 years, depending on usage. Have you tried testing it right out of the tap? I should check mine, too.

[Proteus]

I will test out of tap. But I'. Going to order new membrane today

[Reef Pilot]

Do you flush your membrane on a regular basis? Membrane should last more than 2 years.

[Proteus]

Not sure how to flush. Honestly thought it did it itself. It's a vertex puretek

[Reef Pilot]

Not sure how to flush. Honestly thought it did it itself. It's a vertex puretek
Not sure about that one, but the better ones have flush valves for both the membrane (extends the life of the membrane) and DI, and also an ASOV to waste less water, and also extend the life of your membrane, as well as your prefilters. Here is some info on the one I have. Works really well.
http://www.airwaterice.com/category/z.7/

[Proteus]

Just looked and it does its own backflush. I bought used so it could be three or so years old.
Also it made 400g a month for the first year I had it and 160g a month since. If I remember . Was told that making small amounts of water is harder on the membrane

[Reef Pilot]

Just looked and it does its own backflush. I bought used so it could be three or so years old.
Also it made 400g a month for the first year I had it and 160g a month since. If I remember . Was told that making small amounts of water is harder on the membrane
Have heard that, too. Not sure if it is true. Here is my trouble shooting guide. Maybe it will give you some ideas on yours. My membrane is probably 6 years old, and still good. I bought the unit used 3 years ago, and the guy said it was 3 years old. So this one certainly lasts a long time.
http://www.airwaterice.com/category/z.91/

[wreck]

Awesome link!!

[Proteus]

I ordered a new membrane and other filters. A friend told me that chloramine is harder on membranes than chlorine and most treatment facilities have.gone the chloramine way

Brs does sell the required carbon for chloramine so time will tell

[mike31154]

Not sure how to flush. Honestly thought it did it itself. It's a vertex puretek

New membrane is never a bad idea, but it would be to your advantage to find out more about how to use your specific system, particularly the flush feature, as that's a major factor in aiding a longer life for your membrane. Must be some instructions available from a company like Vertex? Would also help if you provided more details on your unit other than Vertex Puratek. How many stages, including pre filters & carbon etc? What micron value are the prefilters & how often do you change those?

Aside from that, depending on your source water TDS, your membrane may last longer than other people's or not. Folks on the west coast generally have very soft, low TDS tap water to start with so their membranes can last a very long time because they're not dealing with 100 - 200 or even higher TDS tap water. Nevertheless, even with an average 180 TDS tap water here, I'm still on my first membrane after 5 years of use. I manually flush before & after each run & I generally make a minimum of 14 gallons of water.

I've found the Buckeye Field Supply (now Buckeye Hydro) site a great source of info as well. Never steered me wrong & they're happy to help even without making a sale. Link to their FAQ page:

http://www.buckeyehydro.com/faq/

Some great info there on tools such as pressure gauges to aid in determining when it's time to change various filter stages, including membrane.

[mike31154]

I ordered a new membrane and other filters. A friend told me that chloramine is harder on membranes than chlorine and most treatment facilities have.gone the chloramine way

Brs does sell the required carbon for chloramine so time will tell

Have you confirmed that your water utility uses chloramine? If not, adding another carbon stage will not be required and will only slow down production needlessly. You should be able to contact your utility, city or whatever web site to find out what your water is treated with. They are legally required to make water quality reports public. Always a good idea to find out exactly what you're dealing with when putting together a filtration system, that way you know what you do or do not need.