Learn More › Black algae in a pool is not just unsightly. Although it isn’t harmful itself, it can spread rapidly and harbor dangerous bacteria, like E. coli, that can make swimmers sick.

SPRINGFIELD, Mass. (WWLP) – It’s necessary to keep the water in your pool circulating and clean to avoid algae, an aquatic plant that can be dangerous. You’ve probably seen it before, a pool ...

A new nylon-bristle brush for fiberglass and vinyl pools costs less than $20, and a combination brush of nylon and stainless steel for concrete and aggregate surfaces sells for less than $30.

Also, don’t store your bristle brush on the bristles as they will develop a curve from the weight of the pole. Keep all pool-service equipment out of the sun to prevent the plastic from drying out.

Algae brushes have steel bristles that are effective on algae but shouldn’t be used on a vinyl-lined pool because they will tear the liner.

The best pool cleaners can help maintain the health of your water with little to no hassle. From high-tech options to a sturdy scrub brush, here are our top picks.

This will mean that you will likely need to clean your pool tiles once a month – and it's far better to do so than having to tackle a bigger, deeper, pool tile cleaning job at the end of the summer.

Answer: This pool could still have algae even with the water testing fine. It may have mustard algae, which brushes off in a cloud of dust, or a resistant strain of green algae.