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TDS (Total Dissolved Solids) 25 Pack
TDS (Total Dissolved Solids) 25 Pack
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Total Dissolved Solid (TDS) Test Strips let you know when your spa's water has reached its saturation level. Dip a into spa water and wait 15 secs. The reading on the test strip will tell you if it is time to change your spa's water
Each strip has a single pad, and there is a simple color chart on the back of the bottle for you to compare the results on the strip. The color of the pad indicates the current TDS level in your spa's water.

Test the TDS monthly to ensure safe levels.
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