If you're considering having a new swimming pool installed on your property or you already have a pool in the yard, you need to understand the many swimming pool chemicals that are required to keep that pool clean and hygienic. Chlorine may kill contaminants in the water, but it's not the only chemical you should use on a regular basis. Note a few of those other chemicals to ensure you're doing everything you can to keep the pool safe and ready for swimming.
Adding chemicals to pool water can affect its acidity levels, making it unsafe for swimming. Trying to adjust the chemicals you add to balance that acidity isn't always a solution, as the water's acidity is affected by rainfall, debris in the pool and many other factors that are difficult to control. A water balancer can be added regularly; some balancers will absorb acid as needed, and some will increase calcium hardness, which makes the pool less alkaline. This can ensure the water's acidity is always balanced and safe.
Oxidizers add oxygen to the pool water, which helps to kill algae and bacteria. It can also help to soften the water so it's more comfortable for swimming. If you have a pool with a liner, choose a lithium shock. This won't bleach the surface of the liner and will reduce the risk of it cracking or splitting. If you enjoy swimming all the time, choose a chlorine-free shock, as this won't leave behind a residue, so you can go back in the water right after adding it.
Clarifiers attach to tiny particles in the water, making them bigger, so they're easier to clean. Actual clarifiers will make particles big enough for the pool filter to trap, whereas flocculants create larger clumps that fall to the bottom of the pool, making it easier to vacuum up those particles. If you notice that your pool is always covered in a layer of dust, or there is always silt at the bottom of the pool, use a clarifier or flocculants as needed.
Don't assume that you need to just live with rust stains or other discoloration along the pool wall or floor. There are a variety of stain removers you can add to the water, each meant for the material of the pool and cause of the stain, such as algae or hard water. These can make your pool look as good as the day it was installed.