A "chlorinated pool" is a swimming pool that has been treated with chlorine, which is a chemical that helps keep the water clean and free from bacteria. Full definition
And with these bare hairs if you jump in chlorinated pool water you may make your scalp dry and itchy. (indianfashionandlifestyle.com)
If you're worried about chemicals, don't be; the pool is built from locally sourced stone and is filled with natural salt water rather than chlorinated pool water. (balitoursandmore.com)
Unfortunately, crypto is a chlorine - resistant germ and can live in a properly chlorinated pool for up to 10 days. (verywell.com)