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how to fix discolored hot tub water


Hot tub water has brownish or greenish discoloration.

Common underlying issues:

Listed in order of likelihood to be the underlying issue.

  • Metal and/or scale buildup in the water

Steps to diagnose & treat the underlying issue:

  1. Add 1 pint of AquaDoc Metal Prevent, then test pH and adjust to normal levels.
  2. Add 2 oz of AquaDoc Stain & Scale for every 500 gallons of hot tub water.

Preventing Green or Brown Hot Tub Water

Responsible use and regular hot tub maintenance are the keys to preventing discolored hot tub water. Following the below recommendations are key to preventing brown or green tinted spa water.

Responsible hot tub usage:

  • Cover your hot tub when not in use

Responsible hot tub maintenance to green or brown colored spa water:

Summary of discolored water treatment products