chlorine is to clean it and you can also use salt,
Swimming pool buffer is a type of chemical treatment used to adjust the pH balance of the water. It helps to maintain proper water conditions which are ideal for swimming.
Chlorine is added to swimming pool water to disinfect it.
Alkalinity
Unless you have an ozonator, which would inject ozone (O3) to sanitize, there are no gases added to the water of a swimming pool.
This is not a question. Be specific
Nothing
Clorien
There is no "swimming pool" insurance. There are however riders available from some insurance companies that can be added to your homeowner's policy.
Swimming in chemically imbalanced swimming pool can give harm into your health. You need to keep in mind that every pool must have clean water, free from algae, dirt and sediments. There are may tips that you can get online on how to properly balance your swimming pool chemicals.
A fresh water swimming pool is a swimming pool that does not use a saltwater chlorinator. A pool that used a salt water chlorinator has salt added to it to so that a salt water chlorinator can electronically convert part of the salt into chlorine. A fresh water pool has chlorine added to it directly either manually or Automatically.
Not a complete question
Potash