They don't literally drain the pool and scrub it do they? Do they just add extra chlorine and check bacteria levels? What do they do?
I'm going to knock on wood that I've never seen this IRL. I'm at our association pool several times every week and I've never seen a code brown. Dear lord I would flip out!
I watched from afar as they cleaned the landing pool under the red monorail slide. That's the deeper pool, not the wading one, but they turn off the slide water and waterfall and close all the slides down. There were some red hazmat bags involved, triple bagged it appeared. A net scoop, and I saw housekeeping with a pack of sawdust that hadn't been opened. There was no draining. That whole retrieval operations probably could take 5 minutes but the slides were closed for 40. Not sure if they have to treat the water for a period of time too, or if they just aren't particularly fast about it.