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PoolRx Blue/White Booster Minerals - 7.5k-20k are essential to replace minerals that have been reduced due to backwashing, splashing out and algae removal. Furthermore, these additional minerals can be used in bigger pools when installing a PoolRx unit for the first time. The booster doesn't need added into your pool filter system; it just needs to dissolve within the water itself. Replace them every 4 - 6 months depending on swimming conditions, so you can maintain crystal clear water all year round!
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