Article: Connect a rubber hose to an indoor or outdoor faucet and run it to your pool. Then, turn the faucet on and let the pool fill up with fresh, unsalted tap water equal to the amount of water you removed earlier. After filling your pool with water, mix a small section of it with a pool brush or pole for 2 to 3 minutes. Then, test that area of the water to get a preliminary salt reading. If it is still above the pool’s recommended PPM, you may need to dilute the water further. If it is below the recommended PPM, you’ll need to add more salt to the pool. The amount added should bring your water’s sodium level back up to the recommended PPM value, so look at the conversion chart located on your pool salt bag to see how much sodium you should put in.  Look for non-iodized, evaporated, granulated pool salt that has a purity level of at least 99.8%. Stay away from salts that contain additives like calcium chloride and sodium ferrocyanide. You can find pool salt at most pool supply stores. Once you’ve added the water and any additional salt, you’ll need to mix everything together using a pool brush or pole to fully dilute the solution. When you’re finished, you shouldn’t be able to see any individual salt grains in the water. After mixing the solution together, let it rest for at least 24 hours. Then, check the water’s salt level readout. The water is safe to swim in if it is within a few hundred units of the recommended PPM level. If it is not, repeat the dilution process.
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Fill your pool with fresh water. Check your pool’s current PPM level. Add salt to the pool if necessary. Mix the salt and water together for 30 minutes. Test the pool’s salt levels after 24 hours.