Vacuuming algae from a swimming pool - GIF

[Altair]

Vacuuming algae from a swimming pool.




Previously:

Cleaning a dirty swimming pool - GIF
Giant shared swimming pool - GIF
Pool solution reacting violently - GIF
Hotpot hot spring pool - GIF
Pool with a view of the sea - GIF

[Karl_H]

Looks like they used some sort of alum treatment to get the sludge to settle.

[bob_3000]

I see a major backwash coming soon.

[Hoosiersmoker]

There's some "algae" but that looks like fine dust or volcanic ash. I've never seen that just from flocking except at :43 sec, that looks like what settles after a floculent treatment. I see a whole new filter changeout after that one! you could backwash and rinse for an hour and not clear the filter. That's a LOT of sediment.

[PDXsparky]

Could be that they bypassed the filter and sent it directly to the sewer. I'm pretty sure that would be how I would have done it if I still had a pool.

That sure is a dirty pool.

[hemmjo]

I am voting for some alge with LOTS of dust from something; wildfire, volcano, something. It is too evenly spread around. Algee would be more concentrated in areas that always have sun, less so on the shady side of the pool.