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Calcium hypochlorite, or cal-hypo, tends to be the best shock for an above ground pool. It is widely available, affordable, and powerful. Cal-hypo shock is typically 65% to 75% chlorine and is very effective at ridding a pool of bacteria or other contaminants.

Calcium lumps in a pool are calcium deposits that form when a pool's water parameters are not in the normal range. They can float around on the surface of the pool water, making it look and feel dirty. The most common causes of calcium lumps in pools are calcium hardness above 1,000 ppm, alkalinity over 120, and a pH over 7.8. Keeping your pool’s calcium levels, alkalinity, and pH levels within the normal, safe ranges is the best way to prevent calcium lumps and other problems, including damage to the pool surface.

There are a few differences when it comes to winterizing above- vs. inground pools. Above ground pool winterization usually involves less hassle, time, and expense than the process for winterizing an inground pool. All the lines on an above ground pool are easy to access, making draining easier. Plus, above ground pools are typically smaller, meaning cleaning is quicker, and chemicals cost less.

No, you shouldn’t be able to taste the salt at all since saltwater pools only contain about 10% of the salt you’d find in ocean water. Saltwater pools do create some chlorine, though, so you should still try not to drink the water.