
Quick overview
- Seven step scale Reads cyanuric acid at 20, 30, 40, 50, 60, 80 and 100 ppm.
- 50 tablets included Comes with 50 cyanuric acid visual grade TesTabs tablets.
- Tablet method Drop a tablet into the test tube and let it break up, no liquid reagent measuring.
- Disappearing dot reading You look down through the tube and read the level at the point the dot in the base vanishes.
- Why stabilizer matters Cyanuric acid protects free chlorine from sunlight, and too little burns chlorine off while too much slows it down.
- LaMotte kit Supplied as a complete kit with the tube and tablets.
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Product details
The LaMotte 6838 is a cyanuric acid test kit, the tool for checking the stabilizer level in a pool. It reads at 20, 30, 40, 50, 60, 80 and 100 ppm.
How the test runs
Fill the test tube with pool water, add one of the cyanuric acid TesTabs tablets and let it break up. The sample clouds as it does. You then look straight down through the tube and note the level at which the dot in the base of the tube stops being visible. That is the reading. The kit comes with 50 tablets, so it covers a long stretch of routine testing.
Why the number matters
Cyanuric acid protects free chlorine from ultraviolet light. Run it too low and sunlight strips the chlorine out of the water within hours. Run it too high and the chlorine that is there becomes sluggish, so the pool needs more of it to hold the same sanitizing power. Since stabilizer only leaves the water through dilution, it climbs quietly over a season and is worth measuring rather than assuming.
| Brand | LaMotte |
|---|---|
| Manufacturer part number | 6838 |
| Type | Cyanuric acid test kit |
| Tests for | Cyanuric acid, also called stabilizer |
| Range | 20, 30, 40, 50, 60, 80 and 100 ppm |
| Reagent | 50 cyanuric acid visual grade TesTabs tablets |
| Method | Disappearing dot, read down through the test tube |
| Shipping weight | 1 lb |
| Ships | Parcel |
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