Yes, you can use food coloring to find a pool leak. Alternatively, you can use pool detection dyes that are nontoxic and biodegradable. Depending on how much food dye you have on hand, it may be more cost-effective to use pool dyes.

The dye test is one of the best swimming pool leak detection tools because the dyes are heavier than water. By observing where the dye gets sucked in, you can find the location of your leak.

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.

You shouldn’t swim in a pool with algae. When there’s algae, there’s also bacteria that’s feeding on the algae. Also, algae-infested pool water is often chemically imbalanced, which means germs like Cryptosporidium, Giardia, and E.coli could be present. These germs can cause a range of illnesses from gastrointestinal issues, to rashes, and respiratory problems.

The best thing to do is to get rid of the algae first, test and balance the water, and then you can enjoy swimming without any worries.

A qualified pool contractor who is familiar with local regulations can assess your yard and let you know if it’s feasible to install a pool. Whether or not your yard is suitable for a pool depends on a number of factors, including the size of your yard, the placement of utility lines, your yard’s terrain, and more. It’s a good idea to see if it’s even possible to put a pool on your property before you get too far into planning.