Finally, a system that really works! The Pond Monsta is a continuous vacuuming system that is up to four times faster than traditional pond vacuums that have to be emptied over and over. Leaves and other debris are sucked up through the vacuum and pumped into a debris collector. Water from the collector can be recycled back into the pond if sludge content is not high. For high sludge content, water can be discharged onto lawn, flower beds, etc.