How the AutoFresh System Works

The sophisticated components of the AutoFresh system are seamlessly integrated with your Hot Spring spa to keep your spa water fresh, clean and sparkling clear – automatically.

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(A)  Dosing Engine

Your authorized Hot Spring dealer will install the dosing engine containing the advanced components that drive the AutoFresh system. The sophisticated switching valve, pump, and circuit board work together to calculate the precise amount of chemicals needed, and automatically dispense them into the spa water.

(B)  Cartridge & Cartridge Base

The cartridge base will be attached to the underside of the filter lid by your authorized Hot Spring dealer. You simply install the disposable AutoFresh cartridge, which becomes invisible once in place.

The cartridge contains a chlorine- and bromine-free sanitizer, shock, and waterline control. Each cartridge lasts about three months, varying based on spa size and usage.

(C)  Water Care Icon

Every two weeks, a flashing water care icon reminds you to test the spa water. Simply input the test strip reading into the IQ 2020® control panel or optional remote control.

(D)  IQ 2020® Control System

The Hot Spring IQ 2020® Control System communicates with the AutoFresh dosing engine, and together they determine and deliver the correct dosage.

The pH, Total Alkalinity and Hardness must be in the "ok" range indicated on the test strip container before adding AutoFresh chemical into the spa.

Download the AutoFresh Owner's Manual (PDF format - 1.16MB)

The sanitizer included in the cartridge is registered under EPA Reg. No. 1258-1265-73081.