Hayward Pool Equipment Low Salt Error: How to Fix It

Q: How much salt should I add to my pool for Hayward systems?

Most Hayward salt systems require 2700-3400 ppm of salt. For a 20,000-gallon pool starting from zero, you'd need about 450-570 pounds of pool salt to reach the proper range.

Q: Why does my Hayward system keep showing Low Salt after adding salt?

This usually happens because the salt hasn't fully dissolved yet. Wait 24 hours with the pump running before retesting. If it still shows low salt with correct levels, the salt cell may need cleaning or calibration.

Q: What type of salt should I use for my Hayward pool system?

Use only pure sodium chloride pool salt that's 99.8% pure with no additives, anti-caking agents, or iodine. Regular table salt or rock salt can damage your equipment.

Q: How often do I need to add salt to my pool?

Salt doesn't evaporate, so you typically only need to add salt when water is lost through backwashing, splashing, drainage, or heavy rain. Most pools need salt added 1-3 times per season.

Q: Can I swim immediately after adding salt to my pool?

It's best to wait until the salt is fully dissolved, usually 24 hours. Swimming with undissolved salt crystals can be uncomfortable and may cause skin irritation.

Abstract

The Hayward Low Salt error appears when your pool's salt level drops below 2700 ppm, preventing the salt chlorine generator from producing adequate chlorine. This is a common issue that typically occurs when salt dissolves or gets diluted by rain, backwashing, or splashing.