Taylor K-2105 test kit for chlorine, pH, alkalinity, hardness and cyanuric acid – 103002
Taylor K-2105 test kit for chlorine, pH, alkalinity, hardness and cyanuric acid – 103002 subject to supplier availability.
Estimated delivery time: 3 to 7 business days
Description
Description
The Taylor K-2105 test kit is a professional case with liquid DPD reagents that lets you test the pool water's 9 key parameters: free, total and combined chlorine, bromine, pH, acid and base demand, total alkalinity, calcium hardness and cyanuric acid.
Combines three methods: colorimetry with a visual comparator (chlorine, bromine and pH), drop titration (alkalinity and calcium hardness) and turbidity (cyanuric acid). Its precision makes it a benchmark for many pool maintenance professionals.
Quick overview
- Reference: 103002 (Taylor K-2105).
- Parameters: 9.
- Chlorine and bromine: low-range liquid DPD.
- Methods: colorimetry, drop test and turbidity.
Know how much product to add
The acid and base demand tests tell you exactly how much pH adjuster you need, using the treatment chart.
Monitor stabilizer
The cyanuric acid test prevents excess stabilizer, which reduces chlorine effectiveness.
Parameters and test method
| Parameter | Reagents | Method / reading |
|---|---|---|
| Free chlorine | R-0001 + R-0002 | Color comparator (ppm) |
| Total chlorine | + R-0003 | Color comparator (ppm) |
| Combined chlorine | — | Total chlorine − free chlorine |
| Total bromine | R-0001 + R-0002 | Color comparator (ppm) |
| pH | R-0004 | Color comparator |
| Acid demand | R-0005 | Drops + treatment chart |
| Base demand | R-0006 | Drops + treatment chart |
| Total alkalinity | R-0007, R-0008, R-0009 | 1 drop = 10 ppm CaCO₃ |
| Calcium hardness | R-0010, R-0011L, R-0012 | 1 drop = 10 ppm CaCO₃ |
| Cyanuric acid | R-0013 | Graduated tube turbidity (ppm) |
Instructions for use
Free, total and combined chlorine
- Rinse and fill the comparator's small cell to the 9 ml mark.
- Add 5 drops of R-0001 and 5 drops of R-0002. Cap and invert to mix.
- Compare with the chlorine scale*: the result is ppm of free chlorine (FC).
- Add 5 drops of R-0003, cap and invert.
- Compare immediately: the result is ppm of total chlorine (TC).
- Combined chlorine: TC − FC = CC.
Total bromine
- Rinse and fill the small cell to the 9 ml mark.
- Add 5 drops of R-0001 and 5 drops of R-0002. Cap and invert.
- Compare with the bromine scale*: the result is ppm of total bromine.
* If the color is off the scale, repeat the test using 4.5 ml of sample, top up to 9 ml with distilled water, and multiply the reading by 2. If it is still off the scale, use 1.8 ml of sample and multiply by 5.
pH and acid/base demand
- Rinse and fill the pH cell to the 44 ml mark.
- Add 5 drops of R-0004, cap and invert.
- Compare with the scale. If the color falls between two values, the pH is the average.
- To lower the pH: to the same sample, add R-0005 drop by drop, mixing after each drop, until you reach the desired pH. Refer to the treatment table.
- To raise the pH: do the same with R-0006.
Total alkalinity
- Rinse and fill the large cell to the 25 ml mark.
- Add 2 drops of R-0007 and mix; then add 5 drops of R-0008 and mix. The sample will turn green.
- Add R-0009 drop by drop, mixing and counting, until the color changes from green to red.
- Multiply the drops from step 3 by 10: the result is ppm of total alkalinity (CaCO₃).
Calcium hardness
- Rinse and fill the large cell to the 25 ml mark.
- Add 20 drops of R-0010, cap and shake.
- Add 5 drops of R-0011L, cap and shake. The mixture will turn reddish.
- Add R-0012 drop by drop, mixing and counting, until the color changes completely from red to blue. Keep the bottle upright.
- Multiply the drops from step 4 by 10: the result is ppm of calcium hardness (CaCO₃).
Cyanuric acid
- Rinse and fill the calibrated bottle (9191) to the 7 ml mark with the water to be tested.
- Add R-0013 to the 14 ml mark. Cap and shake for 30 seconds: if cyanuric acid is present, the sample will become cloudy.
- Looking from above, slowly pour the cloudy sample into the graduated tube until the black dot at the bottom is no longer visible.
- Read the graduation at the liquid level: the result is ppm of cyanuric acid.
Frequently asked questions
What is the advantage of liquid DPD?
Taylor liquid reagents provide very precise readings and allow you to dilute the sample when chlorine or bromine is off the scale.
What are demand tests for?
They indicate how much reducer (acid demand) or pH increaser (base demand) you need, preventing you from adding too much product.
Can it be used for bromine pools?
Yes. The same R-0001 and R-0002 reagents measure total bromine on its own scale.
Can the reagents be replaced?
Yes. All Taylor reagents are sold separately by code (R-0001, R-0002…), so the kit can be reused.
