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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: monkeyman on January 09, 2009, 05:34:00 pm

Title: RESIN USAGE
Post by: monkeyman on January 09, 2009, 05:34:00 pm: hi guys i currently have a pure freedom 200g per day system ,my tap water tds going in my ro system is 190,any ideas how many ltres of pure water my di unit will produce untill my resin goes up from 000?my di unit is 10 inch one again from pure freedom?
Title: Re: RESIN USAGE
Post by: dd on January 09, 2009, 06:24:02 pm: What is the tds coming out of RO?

You may get better performance by upgrading to 300gpd by getting a kit to fit another membrane.
Title: Re: RESIN USAGE
Post by: monkeyman on January 09, 2009, 07:10:10 pm: tds out of ro 25
Title: Re: RESIN USAGE
Post by: davids3511 on January 09, 2009, 08:17:53 pm: You should get about 28000 ltrs with that.
Title: Re: RESIN USAGE
Post by: tompoole on January 09, 2009, 08:24:02 pm: if its set up corret then it should be alot lower reading maybe 6 or 13 at most. i had a 200 gpd ro from purefredom an had the same problem i was using far to much resin so eventually i managed to get them to replace the membraines , then my reading was 9 or 13 from tap water tds of 300.
Give them a call
Tom
Title: Re: RESIN USAGE
Post by: AJ on January 09, 2009, 08:25:54 pm: Quote from: davids3511 on January 09, 2009, 08:17:53 pm
You should get about 28000 ltrs with that.

1 too many 0's isn't there?
Title: Re: RESIN USAGE
Post by: tompoole on January 09, 2009, 08:27:48 pm: Quote from: dd on January 09, 2009, 06:24:02 pm
What is the tds coming out of RO?

You may get better performance by upgrading to 300gpd by getting a kit to fit another membrane.

adding another membraine will increase the amount of water you can make a day, not lower the tds reading, i would find out why the membraines you have already aren't working efficiently
Title: Re: RESIN USAGE
Post by: DASERVICES on January 09, 2009, 08:37:17 pm: You will get around 1200 - 2000 litres with a ten inch di vessel. At 25 after r/o your di vessel is probably too small. You need at least a 11l+ di vessel with that TDS level.
Title: Re: RESIN USAGE
Post by: monkeyman on January 09, 2009, 08:44:56 pm: sorry guys just checked the reading again its 9 going into my di unit not 30,will upgrading from 200 to 300 gpd make a big difference on water production?
Title: Re: RESIN USAGE
Post by: Dean Taberner on January 09, 2009, 08:51:12 pm: Should think so mate,

100gpd extra is 450ltrs per day,

I know it doesnt work out exactly like that but im sure the 100gpd add on will improve production greatly.

Dean
Title: Re: RESIN USAGE
Post by: Mr Sparkle on January 10, 2009, 01:56:46 pm: I HAVE THE SAME DI UNIT 10 INCH FROM PURE FREEDOM,RESIN NEEDS CHANGING SO JUST ORDERED 2.5 LITR ,WILL THIS AMOUNT FILL THE UNIT FOR 2 TIMES?
Title: Re: RESIN USAGE
Post by: Oakley Windows on January 10, 2009, 02:04:42 pm: Quote from: gemma6166 on January 09, 2009, 08:44:56 pm
sorry guys just checked the reading again its 9 going into my di unit not 30,will upgrading from 200 to 300 gpd make a big difference on water production?

Yes!

http://www.ro-man.com/shop/index.php/cPath/34

Also it ~~might be~~ worth considering upgrading your DI vessel, those 700ml ones that you have a close to useless after about 500 litres.

Theres a few people on e-bay that sell much bigger ones, 7/11/15 litre ones. Two 7 litre ones side by side will use the resin much more efficiently. Its all well and good to say your resin will bring 2000 litres of water out of your RO unit with a TDS OF 9 down to 0 but that wont happen in reality with a 700ml unit.