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hydro

  • Posts: 37
high tds reading
« on: July 11, 2013, 08:11:09 pm »
Hi im after some suggestions ive changed all my filters and the resin but i still cant get the tds reading down any ideas??
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ben M

  • Posts: 4720
Re: high tds reading
« Reply #1 on: July 11, 2013, 08:16:05 pm »
What is your tds after ro and after di?
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Dave Willis

Re: high tds reading
« Reply #2 on: July 11, 2013, 09:31:31 pm »
What does your business partner say?
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Jack Judd

  • Posts: 105
Re: high tds reading
« Reply #3 on: July 11, 2013, 10:50:21 pm »
You may have algae in the tank.
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hydro

  • Posts: 37
Re: high tds reading
« Reply #4 on: July 12, 2013, 05:35:41 am »
Hi its 230 going in and 22 coming out and the tanks is clean no alge at all
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Jack Judd

  • Posts: 105
Re: high tds reading
« Reply #5 on: July 12, 2013, 07:23:32 am »
mine goes in at 450, guttered but still comes out a 0.  try a new bag of resin, undo all connection and wash with hot water.  attach a filter from tank to resin.  They are cheap and easy to do a fiver or something from the window cleaning warehouse
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Spruce

  • Posts: 8462
Re: high tds reading
« Reply #6 on: July 12, 2013, 08:04:26 am »
Quote from: hydro on July 12, 2013, 05:35:41 am
Hi its 230 going in and 22 coming out and the tanks is clean no alge at all

Sounds like membranes. They are only working at a 90% efficiency if the figure of 22 is taken before the di vessel.

Changing prefilters won't lower your output tds.

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Success is 1% inspiration, 98% perspiration and 2% attention to detail!

The older I get, the better I was ;)

ben M

  • Posts: 4720
Re: high tds reading
« Reply #7 on: July 12, 2013, 08:55:06 am »
Quote from: Spruce on July 12, 2013, 08:04:26 am
Quote from: hydro on July 12, 2013, 05:35:41 am
Hi its 230 going in and 22 coming out and the tanks is clean no alge at all

Sounds like membranes. They are only working at a 90% efficiency if the figure of 22 is taken before the di vessel.

Changing prefilters won't lower your output tds.


+1
you need to flush well the ro. What is your tds after DI?
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