How Often Should I Test My Hot Tub Water?

Regular testing is one of the easiest—and most important—steps in keeping your hot tub water clean, safe, and enjoyable. But how often should you actually be testing it?

Here's a simple rule of thumb:

You should test your hot tub water at least 2 to 3 times a week, and always before using it.

Water chemistry can change quickly depending on how often your spa is used, the number of bathers, weather conditions, and whether you’ve recently topped up the water or added chemicals. Testing helps you catch imbalances early, before they lead to issues like cloudy water, skin irritation, or damage to your hot tub components.

When to test more frequently:

• After heavy use or parties

• After rain or topping up with tap water

• If the water looks or smells different

• When adjusting or adding chemicals

  
  

Spa Fuel Pro Tip:

Use LaMotte test strips and match your results to the colour-coded Spa Fuel packaging—making it simple to know which product to use, and when. When the colours align, your water’s in perfect balance.

Consistent testing is the key to hassle-free hot tub care. A few seconds now saves you hours of maintenance later.

Insta4 Test Strips

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