Pressure Cleaners

If you've got a swimming pool, you need a way to clean it. There are
several types of vacuum options, like in-floor
cleaners, suction
cleaners, robotic, and pressure cleaners. For now, let's look at
pressure cleaners.

They attach to the pressure side of your swimming pool's circulation
system (this is the side that sends water back to the pool after it has
been filtered). The pressure from the water works to power the
cleaner. Water is split three directions, toward the sweeper tail,
the thrust jet, and the venturi. The sweeper tail stirs up small
debris, which is then caught by the pool's main filter through the
skimmer. The thrust jet has ports and gears that direct the cleaner
to roam the pool randomly. The venturi is a fancy name for the port
where the filter bag gets attached. This is where larger debris
(i.e. leaves, twigs) is trapped.

Pressure cleaners are generally a step up from suction cleaners, and
they don't put as much of a strain on the pool's filtration system.
This is because water can still flow through the filter bag, even when
it's full. When the debris is caught in a pump filter basket (the
kind suction cleaners use), the pool's pump has to work harder to keep
water circulating. The pump may wear out sooner and need to be
replaced. Although pressure cleaners are more expensive than suction
cleaners, they can be cheaper in the long run for this reason.