Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: easy clean on July 29, 2008, 07:59:41 pm

Title: figure this out????????
Post by: easy clean on July 29, 2008, 07:59:41 pm
i have a 300 gpd ro from ro-man, then it runs through 2 x 11 litrte di vessels and into tank.

tds readings out or ro  12. after first di 2. after second di 2. if i only run it through one di still 2. shake them around swap places and still 2.

tds meter is calibrated using solution.

very strange any ideas ??? ???
Title: Re: figure this out????????
Post by: NWH on July 29, 2008, 08:12:34 pm
Check that the DI vessels have the arrows pointing the right way ie water in water out,2-1 on that`s the trouble.
Title: Re: figure this out????????
Post by: windowwashers on July 29, 2008, 08:17:09 pm
How old is the resin you are using,  where is it stored this could be the problem.
Title: Re: figure this out????????
Post by: ftp on July 29, 2008, 08:17:40 pm
Try someone elses meter?
Title: Re: figure this out????????
Post by: alanwilson on July 29, 2008, 08:19:23 pm
any chance that both resins are a little old?  I've had this before, sometimes resin won't di down to 000ppm very well but will settle around 1 or 2ppm.

Title: Re: figure this out????????
Post by: NWH on July 29, 2008, 08:21:03 pm
If you change the resin it will give you the answer.
Title: Re: figure this out????????
Post by: windowwashers on July 29, 2008, 08:21:18 pm
any chance that both resins are a little old?  I've had this before, sometimes resin won't di down to 000ppm very well but will settle around 1 or 2ppm.


I agree with that as I am using some resin I bought with another set up and it will not go to 000 it is 001 and has been for weeks  ::) I did change it over and still the same.
Title: Re: figure this out????????
Post by: [GQC] Tim on July 29, 2008, 08:44:29 pm
Fill it 3/4th, and shake the vessel while filling, give it a couple of good bashes on the ground so it's nicely packed.