User Manual Q&AAnswer
Jan 12, 2025 - 10:54 PM
The DI cartridge in the AquaticLife 540710 2x10 Deionized Spot-Free Car Rinse Plus needs to be replaced when the resin inside is exhausted. The resin will change color as it absorbs total dissolved solids (TDS) from the water. When the entire resin has changed color, it is time to replace the DI cartridge. The manual recommends checking the color of the resin regularly to determine when it needs to be replaced. Additionally, the filter cartridge life will vary based on local water conditions and the amount of use. It is important to note that the manual suggests moving the second cartridge to the first position and installing the new cartridge in the second position when replacing the exhausted cartridge. This maximizes the use of the resin.
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