Need any RO/DI stuff? I'm placing an order.

[schneijt]

I've got a long list of stuff I need to buy to get my tank running again, but step #1 is going to be to start cooking all of my dried out LR from when the tank was running a year ago. Since I threw out my RO/DI membrane and pre-filters (and because I want some new bells and whistles to add to my RO/DI system), I need to place an order for RO/DI supplies.

I'm going to be placing an order with Buckeye Field Supply (www.buckeyefieldsupply.com) later this week, either Thursday or early Friday morning. They're one of the best RO/DI suppliers out there, and since they're in OH, the order would easily get here by our meeting on the 7th.

If you need or would like anything they offer, let me know as we can work things out to make sure you get it along with my stuff. If you're not going to be at the meeting but are in the La Crosse area, someone could hold it for you, I'm sure.

Thanks,
Joe

[ZMattie]

Are all RO/DI membranes generic? I have a Pureflow 2 that needs new membranes... lol i know stupid question, but ive never used an RODI system

[schneijt]

No, I don't believe that all RO/Di membranes are the same or interchangeable. However, those used for aquariums are all the same for the most part. The Dow Filmtec membranes are "standard" for just about every aquarium RO/DI that I know of, with the only exception I'm aware of being Spectrapure (they make and hand test their own RO membranes). What GPD rating is your system? If it's a 24, 50, 75, or 100gpd membrane, chances are that its a Dow Filmtec membrane. If you take the membrane out of the housing and it's blue, then it's a standard Dow Filmtec membrane like just about every unit uses that I'm aware of.

-Joe

[Jrmass]

I know that the culigan RO units use a different membrane (singular btw zach) than other units as the ends are different. I would be interested to know if I can get a DI unit that is separate from the RO unit itself (as this I have no experience in). If this is a possibility I very well might be interested in this.

Jason

[schneijt]

Originally Posted by Jrmass

I would be interested to know if I can get a DI unit that is separate from the RO unit itself (as this I have no experience in). If this is a possibility I very well might be interested in this.

Jason

Sure can, Jason. http://buckeyefieldsupply.com/showpr...ory=39&Sub=127

-Joe

[Jrmass]

Interesting that would require next to nothing to install as all I would need to do is reduce down from 3/8" lines to 1/4" which would drastically reduce my flow to my pressure tank but, I do not rely on heavy usage off of it anyhow. Do you know if they make the fitting ends into 3/8" so that I would have no loss in volume at all?

I also had a random thought.. Do any of you know where I could go about getting an auto shut-off for my RO? So, that when my pressure tank is full the water will not continue to run down the drain? I know they make them just too lazy to call my dad and see if he can find something for me lol.

Jas

[schneijt]

As far as an auto shut-off, is this what you're looking for? http://buckeyefieldsupply.com/showpr...ry=203&Sub=109

Since 1/4" tubing is the standard, you might have to get 1/4" to 3/8" unions, which can be found on the BFS website under Fittings and then Other/Miscellaneous. It would be really easy to do, it would just take a few fittings/unions...

-Joe (who needs to go to bed, since it's 1:46am in eastern TN)

[schneijt]

Oh, and regarding 1/4" vs 3/8" tubing, once the water leaves the membrane there isn't much pressure, so I don't think having to reduce to 1/4" should really affect anything. You say you have a "pressure tank" and I'm not sure how you have everything set up. But, RO/DI output is such a slow stream that there can't be any problems with 1/4" tubing not allowing enough water to flow through or anything.

-Joe

[Jrmass]

Yes I do have a pressure tank for holding my RO water. I have it all plumbed in direct off of the RO unit itself. The water for the upstairs RO tap on the sink is set to go around the tank so it comes right off the unit. But, the water that I use for the fish tank holds in the tank so I can have an additional 13 gallons on hand for topping off.

As far as the shut off goes.. Yes, that is exactly what I'm looking for but, my unit is really only about a 25 GPD unit so that is not going to work for me. I suppose the amt of water that I'm actually wasting is very minimal but, reguardless it still is "waste".

Also, the 3/8" to 1/4" reduction is not an issue as far as drainage off of the RO unit itself goes... If just that I am just trying to evade reducing the lines down to many times as my final stage polisher is 3/8" thus I'll be going from the RO with 3/8" tubing to 1/4" to get to the DI Resin Filter then back up to 3/8" for my final stage polisher. Thus I asked if they made the DI's in 3/8" as I would not have to buy the additional quick connectors.

BTW I have yet to see any pricing as far as Shipping goes... Any idea on this?

Jason

[Afish4u]

JASON STOP. lol ok so I haven't been on here for a bit. that is good up to 100 gal..... I have an extra canister you can have( you will just have to add the fittings and the DI, dirk sells them for 8-10 ), I also have the shut off valve.

Are you still looking for a glass top for the aqua pod? I picked up an extra one $15.00(thought you might be interested in it)

[schneijt]

Originally Posted by Jrmass

Yes I do have a pressure tank for holding my RO water. I have it all plumbed in direct off of the RO unit itself. The water for the upstairs RO tap on the sink is set to go around the tank so it comes right off the unit. But, the water that I use for the fish tank holds in the tank so I can have an additional 13 gallons on hand for topping off.

As far as the shut off goes.. Yes, that is exactly what I'm looking for but, my unit is really only about a 25 GPD unit so that is not going to work for me. I suppose the amt of water that I'm actually wasting is very minimal but, reguardless it still is "waste".

Also, the 3/8" to 1/4" reduction is not an issue as far as drainage off of the RO unit itself goes... If just that I am just trying to evade reducing the lines down to many times as my final stage polisher is 3/8" thus I'll be going from the RO with 3/8" tubing to 1/4" to get to the DI Resin Filter then back up to 3/8" for my final stage polisher. Thus I asked if they made the DI's in 3/8" as I would not have to buy the additional quick connectors.

BTW I have yet to see any pricing as far as Shipping goes... Any idea on this?

Jason

Not sure on shipping prices, but they wouldn't be too high since I'm not ordering anything huge (just a membrane, pre-filters, etc...) and I'm sure they'd send it via UPS Ground or something similar that would only take a few days to get to us.

As far as 3/8" DI, I'm not aware of any DI's that use 3/8" fittings. However a DI canister is nothing more than a regular 10" housing with a DI resin cartridge in it. They do offer a 10" housing with 3/8" NPT threading. So, you could buy the 3/8" housing, two 3/8" fittings to screw into it, and a pre-filled DI cartridge and voila, you'd have a 3/8" DI stage for your system. It would be nice if they'd just sell a 3/8" DI system, but I just don't think the demand would be that high.

Let's see... If you bought the parts yourself to make a 3/8" DI from BFS, the cost would be roughly $40 (housing with 3/8" threading, two 3/8" fittings to screw into it, and a pre-filled DI to go inside the housing), so it'd be $12 higher than buying the standard add-on DI kit that has 1/4" fittings. That said, it wouldn't hurt to e-mail BFS and ask if they could make a DI with 3/8" fittings for less than that, or at least give you a cheaper price on the parts, since all that's changing is the threading being upped to 3/8" instead of 1/4".

I'd shoot them an e-mail and see if they could offer you a 3/8" version of their DI add-on unit and keep it at the same price ($28) as the 1/4" version or close to that. They can probably do it for you, since they're good people to work with and I understand that you don't want to go to/from 1/4" over and over in your system.

-Joe

[Jrmass]

Think I will talk to them about that.

[pogodzib]

FYI - Some of the Spectrapure units do have 3/8" lines instead of the 1/4" lines if you order them with certain drinking kits. Both Matt's and my previous units had 3/8" lines. Yes, it does make a big difference if your running the lines over long distances to a drinking water tap, but if you are only going to be using it over a short distance to a tank water topoff storage tank than I don't know that it would be too beneficial.

[Jrmass]

Well, my RO unit is roughly 30-40 feet away from my top-off areas.

[schneijt]

Last call if anyone wants or needs anything. The order is going in at 8pm eastern time tonight (a bit earlier than planned, but I got some money in my account from Paypal to cover the cost of my RO/DI supplies). Reply to this or PM me if you need anything, and if you do, please don't do it at 7:59pm tonight. It'd be nice if you did it earlier so we could figure out payment--I'll cover shipping unless it's a ridiculously huge and/or heavy thing you need. :-)

-Joe