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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.

Yes, too much chlorine can make your pool cloudy, especially after you have recently shocked it. However, low chlorine levels are a more common cause of cloudy water. An imbalance in pH or an excess of any chemical can also lead to cloudiness. To determine the specific cause, you should test your pool water to check the levels of chlorine, pH, and other chemicals. Regular maintenance is essential for keeping your pool clean and clear.

Certain pools serve as a middle ground between traditional swimming pools and hot tubs. The two main options are plunge pools and swim spas. A plunge pool (or cocktail pool) is smaller, but you can add spa-like elements such as heating and jets. A swim spa is more similar to a hot tub, but it produces a current that allows you to swim in place (similar to how a treadmill lets you run in place). 

If you don’t bond a pool, you risk electric shock for those walking around or swimming. Bonding creates safe pathways between the electricity needed to run the pool and metallic parts also necessary for the proper function of the pool. Once the pool is bonded, it’s ready for grounding, the second step in creating an electrically safe pool.