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Unread 02/22/2011, 12:09 PM   #7
jeff@zina.com
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Join Date: Apr 2010
Location: Naples, FL
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Quote:
Originally Posted by timi hendrix View Post
i was just wondering if distilled water has a reading of zero using distilled.
Distilled water, by definition, will always be 0 TDS. Distillation involves taking a liquid (water) and converting it to a gas (water vapor) then condensing it back to liquid (water again). You can't dissolve a solid in a gas, so there are no dissolved solids remaining after distillation.

Quote:
Originally Posted by timi hendrix View Post
i am asking because i think my tds meter is flawed or something because my reading is like 20 with a new di resin and carbon and sedimen filters.
There are no carbon or sediment filters or DI resin involved in distilled water. If you really mean to ask about RO/DI water, then you may very well read some TDS for the first few minutes of operation or the first hour or so after replacing the membranes.

Jeff


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