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concept

RISING TDS-HELP NEEDED
« on: July 21, 2009, 06:21:16 pm »
As you guys know, I am a total newb...my TDS is on the hike and I don't know how to pinpoint the problem, however, I have a fair idea...

System:

Pre-filter (new)
Merlin RO (bought 2nd hand, no idea of age)
DI Vessel (new)

TDS as follows:

Source: 335
After pre-filter: 328
After RO: 79
After DI: 18

I assume as all else is new, the RO unit needs its filters replacing?!

 ???
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Sunshine/Cleaning

Re: RISING TDS-HELP NEEDED
« Reply #1 on: July 21, 2009, 06:23:23 pm »
Resin prob wants changing. What size is DI? How long ago was it new resin?
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concept

Re: RISING TDS-HELP NEEDED
« Reply #2 on: July 21, 2009, 06:29:20 pm »
about 4/5 weeks, and I only started producing a few weeks back...
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Sunshine/Cleaning

Re: RISING TDS-HELP NEEDED
« Reply #3 on: July 21, 2009, 06:31:12 pm »
What size is the DI vessel?
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concept

Re: RISING TDS-HELP NEEDED
« Reply #4 on: July 21, 2009, 06:36:58 pm »
18"
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Steve CM

Re: RISING TDS-HELP NEEDED
« Reply #5 on: July 21, 2009, 06:41:49 pm »
i've never used a merlin but 78 after the ro sounds massivley high ???
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RO-Sheen

  • Posts: 1308
Re: RISING TDS-HELP NEEDED
« Reply #6 on: July 21, 2009, 06:44:43 pm »
Try flushing your RO for about 30 minutes with water. Might just need a good clean. if poss, flush it with the DI water in your tank
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Formerly known as GARGAAX

concept

Re: RISING TDS-HELP NEEDED
« Reply #7 on: July 21, 2009, 06:58:20 pm »
even though i have had a tds reading of 0 up til now?
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RO-Sheen

  • Posts: 1308
Re: RISING TDS-HELP NEEDED
« Reply #8 on: July 21, 2009, 08:28:08 pm »
possibly, yeah....You should rinse your RO out about once every 7-14 days. If you dont you will find that it doesnt work so well.
Think of your RO as a filter. It will filter out a lot of impurities but in time it will clog up so you need to clean it.
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Formerly known as GARGAAX

jefftemperley

  • Posts: 277
Re: RISING TDS-HELP NEEDED
« Reply #9 on: July 21, 2009, 09:27:42 pm »
just buy new filters from gapswater for the merlin, just ordered some today for mine just found out you should change the carbon filter every 3 mths roughly and i havent been doing it

worth speaking to them they know there stuff
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bad weather always looks worse through dirty windows

concept

Re: RISING TDS-HELP NEEDED
« Reply #10 on: July 21, 2009, 09:30:21 pm »
which ones the carbon filter??

will flush it 2moro and review.

cheers for the advice guys!
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concept

Re: RISING TDS-HELP NEEDED
« Reply #11 on: July 21, 2009, 09:47:20 pm »
that said...how do i flush the merlin?!
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Sapphire Window Cleaning

  • Posts: 2942
Re: RISING TDS-HELP NEEDED
« Reply #12 on: July 21, 2009, 09:58:31 pm »
Concept that tds reading after RO is pretty high mate, it wants to be less than 25 otherwise the resin will need changing a lot.
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Reaching parts traditional window cleaners can not reach.

concept

Re: RISING TDS-HELP NEEDED
« Reply #13 on: July 21, 2009, 10:11:25 pm »
replace filters in ro then?
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Craig Trevain

Re: RISING TDS-HELP NEEDED
« Reply #14 on: July 21, 2009, 10:16:09 pm »
Sounds like you need a new membrane, if the pre filters are new but the membrane 2nd hand i'd look to that.
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Craig Trevain

Re: RISING TDS-HELP NEEDED
« Reply #15 on: July 21, 2009, 10:17:51 pm »
Hi Matt, hows the mini pole?!
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Sapphire Window Cleaning

  • Posts: 2942
Re: RISING TDS-HELP NEEDED
« Reply #16 on: July 21, 2009, 10:50:39 pm »
Hi Craig yeah its very good, a lot lighter than the previous one mate.
Getting a larger van in the next couple of weeks.
Suppose you dont fit cages and tanks do you?
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Reaching parts traditional window cleaners can not reach.

Sapphire Window Cleaning

  • Posts: 2942
Re: RISING TDS-HELP NEEDED
« Reply #17 on: July 21, 2009, 10:52:21 pm »
Concept I would give it a good flush for atleast 3 hours just to make sure, if its still the same then I would get new membrane.
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Reaching parts traditional window cleaners can not reach.

Craig Trevain

Re: RISING TDS-HELP NEEDED
« Reply #18 on: July 21, 2009, 10:58:29 pm »
I've got to be careful not to be seen peddling!! on here (like some suppliers do) so if you get a chance call me tomorrow.
As we can help on this.
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Sapphire Window Cleaning

  • Posts: 2942
Re: RISING TDS-HELP NEEDED
« Reply #19 on: July 21, 2009, 10:59:47 pm »
Craig do you have msn?
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Reaching parts traditional window cleaners can not reach.
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