You are quickly able to installation.The bag goes on with an easy draw string closure to trap the debris. You screw a regular garden hose on to create a suction effect which allows you to add a little water to your hot tub as you clean it. The Vac must be completely submerged or water will spray everywhere like some others have mentioned when trying to use it in the small fountains or landscape pools.The collection bag attaches nice and tight and I never have to empty until finished vacuuming. Pool spa pond mini jet vac vacuum cleaner It produces suction to collect stains, leaves and stones from the bottom of the pool. Deluxe complete underwater vacuum cleaner with 6 sections pole of 56.5" and brushes Attachs to standard garden hose, In order to ensure the ideal use effect, Min used pool water depth: 60cm/23.6in. Note:(No Garden Hose Included)