We take away stubborn leaves and pine needles from demanding-to-reach places, stopping clogs, stains
https://www.redding.com/press-release/story/95210/heat-raises-algae-risk-in-home-pools-cleaning-pros-warn/
We put off obdurate leaves and pine needles from rough-to-reach parts, fighting clogs, stains, and circulate disorders that cloud water.