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RO-Sheen

  • Posts: 1308
What is the maximum TDS before it causes problems?
« on: May 03, 2006, 09:17:57 am »
My TDS has always been 000 since I got my system mid feb but lately it has been creeping up. Yesterday it was reading 9ppm. Has anyone any ideas? My colour change resin is only half spent.
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Ian_Giles

  • Posts: 2986
Re: What is the maximum TDS before it causes problems?
« Reply #1 on: May 03, 2006, 02:30:05 pm »
Time to change your resin!
You don't give a lot of info on what type of system you have, is it DI only? Or R/O too?
With the resin that I use (in fact I've used 2 different types and both do the same thing) once the 2 different colour beads have separated out so that it in fact looks as if it is only half used, it is of course fully exhausted.

You can get away with a TDS reading in the low teens, I have on occasion (not deliberately I might add) but it isn't to be recommended.

My R/O brings down my TDS to a reading of 0.001-2 ppm so as soon as my pure water reading shows the same I change my resin.
I rather suppose that if you are using a resin only system then you want to try and wring the most you can out of your resin, but if you are on an R/O why bother?
Your reading starts to climb so change your resin.

Ian
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ray l

  • Posts: 167
Re: What is the maximum TDS before it causes problems?
« Reply #2 on: May 03, 2006, 07:35:08 pm »
I think I was told if it went above 12 or 14 it was time to change or customers would start to complain.
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petetaylor56

  • Posts: 175
Re: What is the maximum TDS before it causes problems?
« Reply #3 on: May 03, 2006, 10:09:07 pm »
 :)i ran mine to 15 with no problem but wouldnt let it get any higher :)
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RO-Sheen

  • Posts: 1308
Re: What is the maximum TDS before it causes problems?
« Reply #4 on: May 04, 2006, 08:50:30 am »
Cheers Guys

Ian- My system is a Reach and Wash pro 5 (DI+RO)
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Morph

Re: What is the maximum TDS before it causes problems?
« Reply #5 on: May 04, 2006, 09:38:07 am »
Quote from: RO-Sheen on May 04, 2006, 08:50:30 am
Cheers Guys

Ian- My system is a Reach and Wash pro 5 (DI+RO)

Wow!  You'd think they'd have told you when to change the resin......At those prices!

Sorry mate :o
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gsw

  • Posts: 505
Re: What is the maximum TDS before it causes problems?
« Reply #6 on: May 04, 2006, 06:28:34 pm »
Hi ian, I have the same system.... I found that one resin cannister (the first one) lasted 2 1/2months, the second I bought form ionics started to diminish after 3weeks!!! I wasn't best pleased at £60.00 a pop, so I went and bought my self a seperate DI vessel, 11L for £130.00 filled with resin after this I reckon resin will cost no more than £12-£15.00 per month at worst and you can buy the resin in bags to refill. I wont be buying any more DI cannisters from Ionics. Hope this helps.

In  the meantime take your DI cannister off and give it a good shake up, this mixes the resin up and you will bring the tds down lower. On a spent cannister this needs doing every couple of days! hope this helps, Greg.
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007 or what

Re: What is the maximum TDS before it causes problems?
« Reply #7 on: May 05, 2006, 07:21:51 am »
hi where did you buy your seperate DI vessel from?
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gsw

  • Posts: 505
Re: What is the maximum TDS before it causes problems?
« Reply #8 on: May 05, 2006, 07:41:16 pm »
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