Zero-depth
Definition
A water-feature design where water sprays and drains without ever pooling, eliminating the standing water that defines pools.
Zero-depth is the regulatory backbone of the splash pad industry. By keeping standing water at literal zero, designers avoid pool-code requirements like lifeguards, fencing, and depth markings. State health departments treat zero-depth installations under simpler 'water-recreation feature' rules.
A properly designed zero-depth surface drains within seconds. If puddles persist, the drainage is failing — a maintenance issue that can also create slip hazards.