pool cleaner

I needed to remove the sludge from the bottom of the pool. The sludge was so fine that the brush attachment was not suitable because it immediately swirled the sludge. I designed this extension. Which removes sludge very well. When the sludge is very fine, I set the filtration to drain the water so that this withdrawn sludge does not return to the pool.
I printed it without supports. It didn't do so well on the lower part. Maybe just a badly set bridging. Since printing takes more than twelve hours, I didn't want to repeat it. I needed to work already. And I am very satisfied.