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 ...

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.

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 ...