Rayne RO Filter

[Bippus]

I had a Rayne water softener put in about a year and a half ago and it came with a RO.
I wanted to replace the filter in the RO but the one Rayne sells is $100. Dose anyone know what size to be looking for or how I could get that info so I don’t have to go with their brand?

 

[AZDesertRat]

Chances are it is a standard sized membrane. Contact one of the Sponsors that deals in RO/DI and I bet they can help you for much less and with a 75 GPD membrane instead of the 25 or so you probably have now.

 

[oct2274]

yes, and make sure you get the appropriate flow restrictor with the new membrane. MAKE SURE YOU TAKE OUT THE OLD RESTRICTOR!

 

[Bippus]

Sounds good, thanks. I’ll have to double check, but I think I had them upgrade it to a 75 gpd membrane when they put it in. Other than a TDS meter what other ways can I check to see if the membrane needs to be replaced other than just the filters. I was also looking at The Filter Guys’ website and they had what looked like a DI add on. Could I just add that after my RO output? Seemed pretty cheap.

 

[AZDesertRat]

A TDS meter is your best tool for determining membrane condition. An add on DI would be a great addition, its plug and play.
Why may I ask do you think you need a new membrane? If production is slowing down it could be the prefilter and carbon need changing, which should be done every 6 months. An inline pressure gauge is the tool for determining if filters are plugged. The membrane should last over 3 years.

 

[Bippus]

I was actually hoping to get away without replacing the membrane. I had some algae showing up when all else seemed well, did a big water change and it seemed to fuel it. Waited for a month w/o doing a water change all was well again.

I’ll have to look more into adding a DI stage. I had no idea they were that cheap. I use the RO for drinking water as well so I’ll need to put a tee between the RO & DI.

 

[AZDesertRat]

Thats what I do too. I store RO water in a 14 gallon bladder tank and then feed it either to drinking faucets, ice maker or back to my MaxCap dual DI system. I would sure check everything with a TDS meter before spending money on filters.