Hot Spring FreshWater salt test strips, 25-pack

Hot Spring FreshWater salt test strips measure hot tub water salinity, or sodium chloride concentration, a parameter essential to salt system operation. They help establish whether salt is needed and check the concentration after it dissolves. Compare the indicator colour with the chart on the container to read the result during water care.

The pack contains 25 single-use strips for initial FreshWater salt system setup and ongoing salt level checks. Testing lets you match additions to the actual water condition and avoid adding more than necessary. This is a dedicated sodium chloride test: chlorine, pH and other chemistry readings require their own strips. It complements the 5-way test with information needed for salt system maintenance.

Salt test strips and their main benefits

• Sodium chloride concentration testing specifically for hot tub salt level monitoring.
• Helps base salt additions on a measured result.
• Read the result by comparing the indicator colour with the chart on the container.
• 25 strips for repeated checks during FreshWater salt system care.

How to use

• Step 1. Before adding salt, remove one strip with dry hands and close the container tightly. Do not touch the indicator pad with wet fingers.
• Step 2. Immerse the strip in hot tub water for the time stated on its container. Remove it and hold it level to read the indicator colour.
• Step 3. Compare the result with the salt concentration chart at the exact time stated on the label. The FreshWater Salt System target is 1750 ppm, with an operating range of 1500–2000 ppm.
• Step 4. If the test shows a low salt level, add FreshWater salt gradually according to the system's dosing instructions. Let it dissolve completely and retest with a fresh strip.
• Step 5. If the salt level exceeds the system's range, do not add more salt. Reduce concentration by replacing part of the hot tub water with fresh water, then retest according to system instructions.

A salt concentration reading does not indicate the chlorine level in the water. Before using the hot tub, check the sanitiser level and other required water parameters separately.

Technical information

• Brand: Hot Spring
• Range: FreshWater
• Product type: Salt Test Strips
• Measured parameter: sodium chloride concentration
• Quantity: 25 strips
• Use: hot tub water salt level monitoring

Product story

Each part of the FreshWater salt system has its own role. Salt supplies the raw material for chlorine generation, the cartridge carries out that process, and salt test strips help monitor sodium chloride concentration. Using these elements together creates a clear care routine in which additions are guided by water tests.

Salt level is a distinct parameter and requires its own test. It complements 5-way strips, which measure chlorine, bromine, pH, alkalinity and hardness. Together, the tests cover different parameters that cannot be replaced by a single reading.

With 25 strips in the pack, checks can be repeated at different stages: preparing the water, deciding whether to add salt and checking the result after dissolution. The container's colour chart links the reading to the next action and supports regular, considered hot tub water care.

Frequently asked questions

Do these strips test chlorine and pH?

No. They measure salt, or sodium chloride, concentration. Other parameters require their own tests.

How many strips are included?

The pack contains 25 salt test strips.

When should I check the salt level?

Before replenishing salt, after added salt has dissolved, and during salt system maintenance.