Hot Tub Forum

Original => Hot Tub Forum => Topic started by: H823Putt on May 19, 2007, 08:38:38 am

Title: Question about TDS
Post by: H823Putt on May 19, 2007, 08:38:38 am

   How do you test for TDS?

Title: Re: Question about TDS
Post by: In Canada eh on May 19, 2007, 08:45:14 am

Have your dealer do it.  There really isn't any point buying a meter for a test thats done 4 or 5 times a year

Title: Re: Question about TDS
Post by: Vinny on May 19, 2007, 09:03:32 am

I started a discussion about TDS meters about 6 months ago and I came to the conclusion that they don't test true TDS ... I also came to the conclusion that replacing the water every 3 to 4 months is the best solution to combatting high TDS.

Title: Re: Question about TDS
Post by: Gomboman on May 20, 2007, 01:07:31 am

How do they test for TDS at a pool/spa store? I'm curious how the calculations are derived.

Title: Re: Question about TDS
Post by: Zep on May 20, 2007, 09:05:40 am

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Price: $59.99  
 

(http://ec1.images-amazon.com/images/I/31HGDVDADYL._AA280_.jpg)


http://www.waterfiltersonline.com/water-tests.asp

Title: Re: Question about TDS
Post by: Vinny on May 20, 2007, 04:38:08 pm

Zep,

These aren't that accurate because they only test ions in the water and not the full load of gunk (ie: dead bacteria cells, human cells, dirt, ...). The meter works by seeing how fast the charge goes from 1 test probe to the other ... the therory is the more ionic stuff in the water the faster it will travel.

Unless we're talking about a lab grade analyzer, I would imagine they all are inaccurate.