the landlord indicated that she posted it because the girl used in her hair chemicals that would make the pool “cloudy,”

Just grabbing a size at random, consider a 12’ x 24’ pool, with an average depth of 4.5 feet: volume is 9,700 gallons, or 1,241,600 fluid ounces.
That’s some powerfully magic hair chemical.

backyardcitypools.com