Determine how many gallons of water is in your pool. (Pool’s length x Pool’s width x Pool’s average depth x 7.5) Figure out the pump’s gallon per minute (GPM) This information is typically listed on the pump label. Once you find this number, multiply that by 60 to get the gallons per hour. Divide the gallons per hour into the total As a general rule for weekly maintenance, add 1/2 teaspoon (.17 oz) of chlorine granules for every 100 gallons of water. That means for a 500-gallon hot tub, you’ll need to add about 2 1/2 teaspoons (.5 oz) of chlorine granules each week. If your chlorine level is at 0 PPM or you’re battling an issue like cloudy water, you’ll need a #2. How many 3-inch chlorine tablets should I use? I also struggled with this problem at first. But after a while, I learned to read the chemistry of my pool water pretty well. Now, I add 2 – 4 chlorine tablets per week during the summertime when the pool is open for swimming. #3 How often should I shock my pool? 2. Number of tablets per application. The amount of chlorine tablets needed per application varies. Typically, for a standard chlorine dose, you need one 3-inch for a 5000-gallon pool. So, round the pool volume to the nearest unit of 5000 gallons for a better estimation of the tablets you need. If I've read the literature correctly, my 14,000 gallon pool needs about 3 3-inch chlorine tabs per week. Does this mean it will *consume* 3 tabs per week? In other words, can I add *more* than 6 tabs to my inline chlorinator and expect not to need to refill it until after two week? Or must I limit myself to adding only 3 tabs, once every week
One 3-inch chlorine tablet can treat up to 5,000 gallons of water. Many brands claim you only need to add tablets once per week, but this is not always the case.
