75gpd Filmtec RO membrane

[redfishbluefish]

I just purchased this from Ligershark today.....a day old 75gpd Filmtec RO membrane.


When I purchased my RO unit back in 2008, I was told it was a 75 gpd unit. Considering I make 5 gallons in about 90 minutes, that calculates out to 80 gallons a day. Well, I pull my old membrane only to find it's a 50 gpd membrane.


So this is back up for sale. HERE is Ligershark's original ad.....same, $20 for an almost new membrane. I'm located in Sayreville.

Thanks for looking.

 

[JRWOHLER]

You can put another membrane than the one you started with. I have had 50,75,100 with restrictor in my Coralvue RODI that came with a 50GPD to start. Works the same unless you have some issue with water pressure.

 

[redfishbluefish]

James, I'm scratching my head on this one. I'm making (by calculation) 80 gpd from my 50 gpd membrane. The restrictor I'm currently running is a 550. According to BRS, this is the same restrictor I need for the 75 gpd membrane. So now I'm thinking I'll put in this new membrane and test the good to bad ratio to see if I'm getting about 1:3 to 1:4. If so, I'll keep it. Otherwise I've got to consider a capilary restictor, which I'll have to cut to "fit".




Then again, someone could have a virtually new membrane for half the cost. I'm sure some of you could use a membrane change.

 

[Hockeynut]

If it doesn't work out for you I will take it Paul

 

[Ligershark]

I just saw this paul, sorry if it didn't work out for you. at least you got some carbon pre filters!