Can splash pad water be reused for landscaping?

Reusing splash pad water for landscaping is an increasingly popular sustainability strategy, especially in drought-prone states. The water has a known chemistry profile (treated potable to begin with) and is captured at high volumes. Permitting requirements vary: California, Arizona, Texas, and Colorado have written graywater or reclaimed-water rules allowing splash pad reuse. The water must be dechlorinated before irrigation since chlorine kills soil microbes; activated-carbon filtration or 24-hour holding tanks with aeration handle this. Distribution must be subsurface drip irrigation, not spray, to avoid public exposure. A separate purple-pipe distribution system (industry standard for reclaimed water) is typical. Cost: $10K-$50K extra at install, payback 5-10 years through reduced supply water and irrigation costs. Flow-through pads can save 30-70% of total water consumption. Document permits and water quality testing for state environmental agency review.