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Chemistry
Saltwater pools only

Ideal pool salt range

Ideal range
2700-3400 ppm
Acceptable range
2500-3500 ppm

What is Salt?

Salt level measures the dissolved sodium chloride that a salt chlorinator converts into chlorine through electrolysis, letting a saltwater pool generate much of its own sanitizer.

Why it matters

Salt levels outside the chlorinator manufacturer's range can damage the salt cell — too low reduces chlorine output, too high accelerates cell wear and scaling. This parameter only applies to saltwater pools with a salt chlorine generator installed.

How to raise Salt

Add pool-grade salt (sodium chloride) directly to the water per the chlorinator manufacturer's dosing chart, then run the pump to circulate before retesting.

How to lower Salt

Partially drain and refill with fresh water; there's no way to chemically remove dissolved salt.

How often to test

Monthly, and always after adding significant fresh water (heavy rain, refilling, backwashing).

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Frequently asked

Questions about Salt

What's the ideal range for Salt?
The ideal range for Salt is 2700-3400 ppm, with 2500-3500 ppm as the wider acceptable range before it's worth correcting.
How do I raise Salt?
Add pool-grade salt (sodium chloride) directly to the water per the chlorinator manufacturer's dosing chart, then run the pump to circulate before retesting.
How do I lower Salt?
Partially drain and refill with fresh water; there's no way to chemically remove dissolved salt.
How often should I test Salt?
Monthly, and always after adding significant fresh water (heavy rain, refilling, backwashing).