Salt Chlorine Generator Service and Cell Replacement in Frisco
Salt cell replacement from $650 installed; cell cleaning included with weekly service
Nine times out of ten a low salt light is not a salt problem. In Collin County it is scale on the plates, a cell worn out early from long run hours, or a flow sensor that stopped reading, and the water goes dull before the display says why. Pouring bags of salt in before testing makes the next problem worse.
How a salt system works, briefly
Dissolved salt passes through a cell with titanium plates. Low-voltage current across the plates turns salt into chlorine gas, which dissolves instantly into the water. The salt is not used up. What wears is the plate coating, and what stops the process is scale, low flow, low salt, cool water or a control fault.
What goes wrong here
Frisco's 2025 water quality report shows the NTMWD Wylie plant water at 96 to 200 ppm total hardness, roughly 6 to 12 grains, with calcium of 31 to 61 ppm, alkalinity swinging from 44 to 138 ppm and pH as high as 8.8, which NTMWD itself calls moderately hard. Hard fill water means calcium, and calcium plates onto the cell every time it reverses polarity. A scaled cell makes less chlorine, the controller pushes it harder, and the cell dies young.
Heat is the second factor. A long swim season means the cell may run eight to twelve hours a day for most of the year. A cell rated for a northern pool's season simply has fewer years in it here.
Lightning and surges take out control boards. A dead display after a storm is often a fuse or a board, not the cell.
What the service visit covers
- Test actual salt, stabilizer, pH and calcium with a meter and reagents, not the display.
- Pull the cell, inspect the plates, and acid clean the scale off if the coating is sound. Cleaning is included for weekly service customers.
- Check the flow sensor and the temperature sensor, which both shut the cell down when they fail.
- Read the controller for cell voltage and amperage. Low amperage with clean plates and correct salt means the cell is worn out.
- Replace the cell, sensor or board as needed. Cells for the common brands are stocked or available next day.
- Set the output percentage and pump run time to match the season so the cell is not working harder than it needs to.
Converting to salt
Switching a chlorine pool to salt means a cell, a controller, a few hundred pounds of salt and a day of dissolving. It cuts weekly chemical cost and gives softer water. It does not end maintenance. The cell needs cleaning, pH tends to climb on a salt pool, and the cell is a wear item that will need replacing. Wiring a new pump, salt cell or heater, and the bonding grid around the pool, is electrical work that Texas requires a TDLR-licensed electrician to do. We bring one in for anything past the equipment's own disconnect, and a wet junction box or tripping breaker is checked before any motor is replaced. Whether the city wants a permit for the conversion is checked before the quote, not after.
Pricing
Salt cell replacement starts at $650 installed, depending on the brand and the pool size the cell is rated for. Sensors and boards are quoted by model. Cell cleaning is included with weekly service and is a flat rate otherwise. Salt conversions are quoted by pool volume.
Call (972) 640-4665 for salt system service in Frisco and across Collin County, and leave the salt bags in the garage until the tech has tested the water.