How do splash pads recycle water?

Recirculating splash pads work like a closed-loop pool system. Water from the spray jets drains through grates in the pad surface, flows through underground piping, and ends up in a holding tank or surge pit beneath or near the pad. From there, a pump cycles the water through sand, cartridge, or DE filters to remove debris, then through a chemical feeder that adds chlorine or another sanitizer, and often through UV or ozone secondary disinfection to kill chlorine-resistant pathogens like Cryptosporidium. The treated water heads back to the spray features. Recirculation typically saves 70-90% of water versus flow-through designs, which is why most newer pads use it. The trade-off is more complex maintenance and higher contamination risk if a chemical or filter system fails.