There’s an autumn chill in the air, which means it’s time to close the pool for the winter. And while in-ground pools and many above-ground ones don’t need to be drained, they should be “tucked in” ...

The pH scale is used to measure the acidity of a fluid. The pH scale ranges from 0 to 14. A pH of 7 is neutral, whereas a pH result below 7 is acidic and above 7 is alkaline. Urine has the widest ...