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The cost to repair a swimming pool varies widely, with an average cost around $700. The total expense can range from as little as $10 for simple DIY fixes to over $20,000 for extensive overhauls. Key factors influencing the cost include the type of pool (in-ground vs. above-ground), its size, and the specific repairs needed. For above-ground pools, repairs typically cost between $100 and $700. For in-ground pools, costs are higher, generally ranging from $350 to $2,700. Common repairs include patching liners, fixing plumbing or electrical lines, and repairing equipment like pumps and filters. More complex issues, such as fixing a cracked beam, can cost $6,000 or more, while major projects like resurfacing a concrete pool can cost between $10,000 and $20,000.

Generally, you do not need to drain your pool to convert it to a saltwater system. The main exception is if you have used an antibacterial agent containing polyhexamethylene biguanide to sanitize your pool, as these sanitation products do not mix well with saltwater systems. If this is the case, you will need to start fresh. You can either drain the pool or treat the existing water with a high dose of chlorine to remove the antibacterial agent. If you choose the chlorine treatment, wait several days to allow the chlorine to work before proceeding with the conversion. If you are unsure whether this applies to your pool, consult a pool technician.

Pool chemical levels should include a pH between 7.4 and 7.6, alkalinity between 80 to 120 ppm, and chlorine from 1 to 3 ppm. The size and type of your pool determine additional chemical levels, such as stabilizers and pool shock, but you can get to know these numbers using our pool maintenance 101 guide.

The generator in your saltwater pool conversion kit transforms sodium chloride—the same salt as table salt—into chlorine. A process called electrolysis sends electricity through the water to interact with the chlorine ion. This ultimately creates the chlorine that keeps your pool safe and clean. The cell in your saltwater chlorine generator is the part that converts the salt into chlorine.