it came with a vac... i vacuumed after an algea bloom, and it was just coming back in the pool... i dont think my vacuum allows to vac to waste.. so now, the bottoms stays clean, not many leaves, dirt. etc.... i'm brushing it along with the sides... the only problem I have are all these dang freakin bugs.. the skimmer gets some, but i have to scoop most of them out. i can also see small particle in the water, but my water is still a little cloudy, so i'm thinking thats probably why.