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Splash pad has high-tech water treatment

The splash pad in Public Square is one of downtown Cleveland's coolest attractions, but did you know that the water is kept clean and safe with a high-tech filtration system deep underground?

The treated water in the splash pad meets the same safety standards you'd expect at your local public swimming pool thanks to a three-stage filtration system enclosed in a vault buried under Rebol.

Water first passes through a series of filters that remove debris.

The second phase chlorinates the water in a series of tanks, much like your local swimming pool. The final treatment happens when it passes through an ultra-violet light machine.

The splash pad’s system treats 7,000 gallons of water in a single day. For comparison, you use about 90 gallons of water a day on your own (flushing toilets, bathing, washing clothes, and more).

Thanks for checking out Wally's Watermarks. This interactive "trail" takes you on an educational journey through Public Square.

Find all eight of Wally's Watermarks to learn about how the design of The Square protects Lake Erie and promotes sustainability.

Find more tips for a healthier home and environment at

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