RO/DI unit

[jason sartain]

Is there a better way to hook up your RO/DI unit to produce more water?


Please give specifics.

 

[weaglereefer]

Better way than what? Water production is dependent on the size of the filters and the water pressure. If you don't have sufficient pressure, you might be making water more slowly than advertised and a booster pump may be needed. Aside from that, if you get a 100gpd unit, unless you add bigger membranes, there isn't a way to get more water.

 

[jason sartain]

Well I have a booster pump and only make about 5 gals a day with a 50 gal membrane.

 

[weaglereefer]

Do you know what the pressure is? I have a 150gpd unit and can make 5 gallons in an hour. Nothing extra added to mine and I know my pressure is on the lower end of the recommended pressure.

How much waste water are you producing?

 

[fish scales2]

Something must be hooked up backwards. Take a couple of pics of the unit and it should help.

 

[tnyga]

patience is a virtue in this hobby

 

[jason sartain]

quote=au01st;399288]Do you know what the pressure is?
Well the pump puts out around 110 PSI,and I make alot of waste water.

 

[jason sartain]

Chris,I tried to call you today and you were not at the shop.Can you post how the normal units hook up.I have this thing apart right now so pics wouldn't help!?

Fish Scales2;399289 wrote: Something must be hooked up backwards. Take a couple of pics of the unit and it should help.

 

[fish scales2]

Hope this helps.
http://www.spectrapure.com/huds/DUAL.pdf">http://www.spectrapure.com/huds/DUAL.pdf</a>

Double membrane hook up.

I have a feeling that you are not running your waste water through to the next membrane, if I remeber correctly you are running 2 membranes.

Sorry I missed your call, I had a birthday party that I took a bunch of reptiles to, wish I could take a reef tank!:confused2:

 

[jason sartain]

Thanks Chris,so with my DI unit I install it before or after the membranes?
Also will it take a little while to go back to 0 TDS reading?

 

[markl]

Whats the recommended pressure rating highest and lowest?

 

[smoothie]

jason sartain;399306 wrote: Thanks Chris,so with my DI unit I install it before or after the membranes?
Also will it take a little while to go back to 0 TDS reading?

After and it will take a few minutes to get to zero.
Tapping into a line is slower than getting a fitting from the sprinkler section at HD and going straight from a hose or faucet

 

[jason sartain]

My booster pump is putting out right at 110 PSI

MarkL;399317 wrote: Whats the recommended pressure rating highest and lowest?

 

[bdesper311]

I have spent a few hours researching rodi units and I think that I am still as lost as when I started. I have a 40 gallon tank and am tired of buying it from the LFS. Can someone give me an idea of what I need and where to get it? I am still in school and live in an apartment so I need it to be easy to install also. Thanks in advance.

 

[drnecropolis]

AWI is a great company to deal with.. If you are looking to save a few more bucks check on Ebay for Water General..

This is the one I have

 

[petrasb]

I have a 50 gpd coral life that needs new filters I will give you.
I think you can get the membrane and filters for about $80 online.

 

[drnecropolis]

Thats not a PWC one.. After all the things I have seen about them leaking and needing parts and repairs when they are brand new I would never suggest them.. I would tell folks to steer clear of them..

Agreed on getting the AWI.. They make great RO's.. Just proposing another option..

 

[drnecropolis]

Hmm never heard that..The seller on these is filterdirect.. Not sure.. I do know mine didnt leak and worked great right out of the box..LOL

 

[jason sartain]

I had one leak on a Sunday during church and it did $16,000 dollars worth of damage to my walls and wood floor.After that,I replaced all the factory fittings with new John Quest fittings.

 

[oldschool52]

I agree with Charley about Pure Water Club as far as a Newbie, Rented House and Leaks. I have a pure water club unit and am very happy with it, that is after I fixed all leaks. I also added a permeate pump to my installation for two reasons: it helps with low incoming water pressure and it is more efficient ie. it produces about 1 1/2 gallons less wastse than without the pump for each gallon or processed usable water. It uses no electrical power only the hydrolics of the brine but installation took some thinking on how to adapt it to the RO unit. If you want to know more about this pump
http://www.pwgazette.com/permeatepump.htm">http://www.pwgazette.com/permeatepump.htm</a>
I do not use a holding tank I use 5 gallon buckets with a lid that has a float valve shutoff.