upgrading an RO/DI unit

jlinzmaier · 03/16/2008, 11:20 AM

Is there anyway to upgrade an RO/DI unit to a higher daily output of RO water???

I initially purchased a 35 gpd RO/DI unit and as I'm upgrading my tank I'd like to have at least a 100 gpd unit. As far as I can tell, the only difference between the RO/DI units and their ability to produce different amounts of RO water (35gpd vs 100 gpd) is the size of the membrane. All the other equipment prior to the membrane (sediment and carbon filtration) is pretty standard on all units correct???

Would I be able to buy a larger membrane housing which fits a 100 gpd membrane and simply hook it up to my current set up??? If so, where could I buy just the membrane and membrane housing??? What brand/type of membrane could I buy that will provide me with the cleanest water (or are they all the same)???

Thanks.

Jeremy

chadfarmer · 03/16/2008, 05:14 PM

get a upgrade membrane setup and back pak it on the 35 gpd and you will be fine

jlinzmaier · 03/16/2008, 05:23 PM

Any idea where I can get a membrane upgrade set up?? I've done searches and can't find just the membrane upgrade.

rbursek · 03/16/2008, 05:31 PM

Go to the sponor forum Thefilterguys.biz or Buckeyefieldsupply, call them, they will set you up. I think the 75gal is better then 100gal less TDS's.

atvdave · 03/16/2008, 05:56 PM

If your old ro/di system uses 10" housings (which most do) then all you need is a new membrane, and a new flow restrictor.

I'd stick with a 75 gpd as it has a 98% rejection rate, a 100 GPD has a 90%.

Here are some good places to start. and if you still not sure just log into there forums and ask what you need. there all good vender's.

http://www.thefilterguys.biz/

http://www.buckeyefieldsupply.com/

http://www.spectrapure.com/

http://www.purelyh2o.com/

http://www.airwaterice.com/

http://www.melevsreef.com/

jlinzmaier · 03/16/2008, 06:29 PM

Thanks very much everyone. I suspected I could just change the membrane and flow restrictor and I'd be good to go.Looked like the membrane housing was the same.

I'll check out those links and do some calling around and see what I can come up with.

Thanks again.

Jeremy

03/16/2008, 11:20 AM	#1
jlinzmaier Premium Member Join Date: Aug 2007 Location: Edgar Wisconsin Posts: 2,094	upgrading an RO/DI unit Is there anyway to upgrade an RO/DI unit to a higher daily output of RO water??? I initially purchased a 35 gpd RO/DI unit and as I'm upgrading my tank I'd like to have at least a 100 gpd unit. As far as I can tell, the only difference between the RO/DI units and their ability to produce different amounts of RO water (35gpd vs 100 gpd) is the size of the membrane. All the other equipment prior to the membrane (sediment and carbon filtration) is pretty standard on all units correct??? Would I be able to buy a larger membrane housing which fits a 100 gpd membrane and simply hook it up to my current set up??? If so, where could I buy just the membrane and membrane housing??? What brand/type of membrane could I buy that will provide me with the cleanest water (or are they all the same)??? Thanks. Jeremy

03/16/2008, 05:14 PM	#2
chadfarmer Premium Member Join Date: Aug 2004 Location: ST Charles, MO far from nanook Posts: 11,045 Blog Entries: 1	get a upgrade membrane setup and back pak it on the 35 gpd and you will be fine __________________ If you think you know the answer than ask 3 more people the question Current Tank Info: 200 Gal RR,ATB medium, 4 AI blue sol,230 LBS LIVE ROCK, no sand , 40 GAL sump, airstar1800, 3 tunze 6105 1- 6205 1-6305, Geo 818, profilux3ex with toys

03/16/2008, 05:23 PM	#3
jlinzmaier Premium Member Join Date: Aug 2007 Location: Edgar Wisconsin Posts: 2,094	Any idea where I can get a membrane upgrade set up?? I've done searches and can't find just the membrane upgrade.

03/16/2008, 05:31 PM	#4
rbursek Moved On Join Date: Jun 2006 Location: germantown,wi Posts: 2,339	Go to the sponor forum Thefilterguys.biz or Buckeyefieldsupply, call them, they will set you up. I think the 75gal is better then 100gal less TDS's.

03/16/2008, 05:56 PM	#5
atvdave Premium Member Join Date: Apr 2004 Location: Newburgh, IN Posts: 1,763	If your old ro/di system uses 10" housings (which most do) then all you need is a new membrane, and a new flow restrictor. I'd stick with a 75 gpd as it has a 98% rejection rate, a 100 GPD has a 90%. Here are some good places to start. and if you still not sure just log into there forums and ask what you need. there all good vender's. http://www.thefilterguys.biz/ http://www.buckeyefieldsupply.com/ http://www.spectrapure.com/ http://www.purelyh2o.com/ http://www.airwaterice.com/ http://www.melevsreef.com/

03/16/2008, 06:29 PM	#6
jlinzmaier Premium Member Join Date: Aug 2007 Location: Edgar Wisconsin Posts: 2,094	Thanks very much everyone. I suspected I could just change the membrane and flow restrictor and I'd be good to go.Looked like the membrane housing was the same. I'll check out those links and do some calling around and see what I can come up with. Thanks again. Jeremy