Answer
May 24, 2023 - 07:12 AM
The SJ Classic cells come in three different sizes. There is the 3-Blade SJ20NR-RC, the 5-Blade SJ40NR-RC and the 7-Blade SJ55NR-RC. These cells works on 2 polarities. For the 3-Blade, one polarity will operate 2 blades while the other will operate the remaining blade. For the 5-Blade, one polarity works 3 blades and the other uses the remaining two blades. For the 7-Blade, one polarity will work 4 Blades and the other will operate the remaining 3. During normal operation, the blades producing chlorine will accumulate calcium build up while, at the same time, the non producing blades are being cleaned of their calcium build up. It sounds as though your cell is operating like it should. Sometimes it is necessary to clean the cell with the provided cleaning tool or soaking the cell in a mixture of 1-part Muriatic acid to 4 parts water.
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