How to match a replacement salt cell
Match a salt cell to the system brand and model, the model stamped on the cell, and the cell's gallon rating. A cell that fits the unions can still be the wrong size for the pool.
· 5 min read
Read both labels
The power center and the cell each have a label. Write down both. One brand can sell more than one cell in a similar housing, with different blade counts and different gallon ratings. The number on the cell beats the shape of the housing.
Gallon rating sizes the cell to the pool. A cell rated below the pool's gallons runs long and dies early. A cell rated far above is not an upgrade if the unions and the cord do not match the plumbing and the power center you have.
Unions and the water
Salt cells plumb in with unions, commonly on 1.5 inch or 2 inch pipe. Measure the pipe or read the size on the union nut. Those measuring rules are in how to match a replacement part.
Crust on the blades is scale, not a reason to skip the model match. Clean or replace using the cell manual, then correct the water. That fault is covered in white scale on a salt chlorine cell. Cells are in equipment.
Questions
What do I need to order a salt cell?
The sanitizer system brand and model, the model stamped on the cell, and the cell's gallon rating. Photograph both labels. The housing shape is the last check.
Can I use a larger salt cell than the old one?
Only when the new cell's unions and cord match the plumbing, and the system manual allows that cell. A higher gallon rating does not help if the cell will not connect to the power center you have.
Does a dirty salt cell mean I need a new one?
Not by itself. Scale is cleaned the way the cell maker specifies, and the water that caused it has to be corrected. Replace the cell when the system reports end of life, or when output stays low after that clean.