system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does pool cleaning work? Surely, even if dissolved, all that crap is STILL in the SAME water?
gpt
It depends. A lot of the material settles out of the water and collects on the bottom or floats to the top where it can be removed mechanically. Some of it do end up in the filters in front of the circulation pumps for the pool which can then be cleaned out. However some of the algae will dissolve into smaller molecules that dissolves in the water. And yes, the crap is still there just in the form of various protein, sugars and fat dissolved in the water. Eventually though they break down into simpler molecules like carbon dioxide, nitrates, salts and water. Some of these do leave the pool in the form of gas. But the rest is pretty harmless.