RO Membranes????

[Anonymous]

Will the 100GPD membrane sold at THATPETPLACE fit in my Spectrapure(currently with a 90 GPD membrane)?

I thought I remember reading that the almost all of the membranes are made by DOW and are all a standard size. Is that true?

Thanks

 

[Anonymous]

It will fit. Research the rejection rate before you buy it though.

 

[Anonymous]

Thanks Guy. Where would I find the rejection rate? I guess I would have to ask THATPETPLACE.

 

[SnowManSnow]

<-- ive always bought from www.buckeyefieldsupply.com They are VERY competively priced... and their purification stuff gets my TDS down to zipo!

Check them out.. and no.. I don't work for them haha.

 

[Anonymous]

I had issues with a Kent membrane fitting correctly in my Spectrapure unit, could have been an anomoly though.

 

[Anonymous]

basic deal with rejection rates involving 100gpd membranes vs 75gpd (and lower)

100gpd rejection of ~ 90%, 75gpd ~98%

 

[mark78]

I emailed spectrapure to find out more info about other brand RO membranes, and they warned me of the rejection rate on the 100gpd membranes. In light of that I think I'm gonna end up going with a 75 instead.

 

[Anonymous]

I run a Tap Water Purifier(DI) on the end, so I'm not too concerned with the rejection rate at this time.

Thanks for all of the replies.

 

[Anonymous]

Well lower rejection rate means more resin you'll use up in the DI stage. So if 100 ppm (of whatever) go into the membrane 98% rejection will leave 2ppm, 90% will leave 10ppm, so you'll go through DI resin 5x as fast.

 

[Anonymous]

No doubt. However, I need the larger amont of GPD. I use my RO off the tap and do not use float valves. So I need to make a lot of water in a short period of time. I'll just need to replace the TWP more often.

 

[Unresistible Blue]

Don't forget that if you start swapping membranes, and you change capacity (gpd), your flow restrictor needs to match your membrane.

An option is to get an adjustable flow restrictor.