We are currently in the process of putting in a backyard pool. This is an in-ground gunite pool. I inquired about an auto-fill system from the pool builder but he talked me out of it. He explained ...

An integrated photometric sensor subsequently measures how much the methyl orange has been bleached – indicating the water's chlorine level – and the extent to which the color of the phenol red has ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. Owning your own swimming pool is definitely a luxury.

During my reviews of pool cleaning robots, I have often said that vacuuming is my least favorite thing about pool ownership. There is a very close second in trying to figure out pool chemistry. I ...

Sometimes we need a non-contact liquid level sensor. There are several ways to build that, but the easiest is to try an optical liquid level sensor. You may already have an idea in mind since you are ...