From microscopic algae and bacteria to debris and wildlife, learn professional remediation techniques to keep your pool biologically safe and visually pristine."
21 articles
The pink streaks show up where nothing else grows. Behind the ladder, in the creases of the skimmer, along a return fitting, down inside…
A pool is, to a bird, a large, clean water source sitting in the open. A place to drink, to bathe, and, from the…
The white water mold that settles into the plumbing and the slack corners is a biofilm, a colony of microorganisms living under a self-made…
During pollen season, a pool that was clean the night before can have a yellow film across the surface by morning. The film collects…
Green algae shows up after a heat wave, a week of storms, or a vacation when nobody checked the chlorine. A pool can go…
White water mold grows in places a shock doesn’t reach well: inside pipes, in the filter, in the skimmer, and behind the pool light.…
The first year it happens, it’s charming. A mallard pair drops onto the water some morning in late March, paddles two lazy laps, and…
Mustard algae is easy to mistake for dirt. Your pool stays clear, chlorine reads around 2 ppm, and a brownish-yellow film appears along the…
A homeowner gets eaten alive in their own backyard every evening in July, looks at the largest body of water on the property, and…
By the time most people call about this, the skimmer basket already tells the story. A wet gray mat of drowned bees pressed against…
A flying ant swarm is a few hours of reproductive traffic that a colony has been building toward all year, and it ends on…
Pool water that’s green but stays clear rather than cloudy, and that gets visibly darker right after a shock treatment instead of clearing, points…
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