Water Testing

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FAQs

Water testing ensures proper sanitizer levels, balanced pH, correct alkalinity, and safe calcium hardness. It prevents algae, scaling, and corrosion, and protects swimmers’ health.

Options include liquid reagent kits, dip-and-compare test strips, digital/colorimeter testers, and professional lab test cups. Each measures parameters like pH, free & total chlorine, alkalinity, hardness, and sometimes metals or cyanuric acid.

Test at least twice a week during peak use or hot weather. Spa water should be tested more frequently (daily or every other day) due to warmer temperatures and smaller volume. Always test after heavy rain or heavy use.

Free chlorine (or other sanitizer), pH, total alkalinity, calcium hardness, and stabilizer (cyanuric acid). Additional checks may include phosphates, metals, and total dissolved solids.

Follow the test kit instructions and the manufacturer's guidelines for tips on getting accurate results. Use the recommended ranges: pH 7.2-7.8; free chlorine 1.0-3.0 ppm (for pools); total alkalinity 80-120 ppm; calcium hardness 200-400 ppm (depending on pool finish); stabilizer 30-50 ppm. Adjust chemicals accordingly if values are out of range.

Water Testing

DPD1B 30 Milliliter (ml) LaMotte Pool Test Reagent

DPD1B 60 Milliliter (ml) LaMotte Pool Test Reagent

DPD3 30 Milliliter (ml) LaMotte Pool Test Reagent

DPD3 60 Milliliter (ml) LaMotte Pool Test Reagent

30 Milliliter (ml) Phenol Red Indicator

60 Milliliter (ml) Phenol Red Indicator

30 Milliliter (ml) Alkalinity Indicator

3547

The Cyanuric Acid (Stabilizer) Test Kit (6838)

7013L (DL-51)

30 Milliliter (ml) pH ColorQ Reagent

30 Milliliter (ml) TA ColorQ Reagent

30 Milliliter (ml) CA2 ColorQ Reagent

30 Milliliter (ml) CA1 ColorQ Reagent

LaMotte Alkalinity ColorQ 2X TesTab 3896A-J (100 pk)

LaMotte Calcium Hardness ColorQ 2X TesTab 3887A-J (100 pk)

DPD1 ColorQ TesTabs – 100 Pack

DPD3 ColorQ TesTabs – 100 Pack

CA Hardness ColorQ TesTabs – 100 Pack

Alkalinity ColorQ TesTabs – 100 Pack

pH ColorQ TesTabs – 100 Pack

CY ColorQ Test Tabs – 100 Pack (New version 2.0 or Higher)

#1 Guardex Ortho Tolidin Reagent

#2 Guardex Phenol Red Indicator Reagent

#3 Guardex Acid Demand Titrant Reagent

#4 Guardex Chlorine Neutralizer Reagent

#5B Guardex Total Alkalinity Indicator Reagent

Guardex 4-in-1 Test Kit for Residential Pool & Spa Testing

Guardex DPD 4-in-1 Test Kit for Residential Pool & Spa Testing No Longer Available

FAQs