+ POOL is the world's first water-filtering, floating pool. Designed in New York, NY, to filter the very river that it floats in through the walls of the pool, + POOL makes it possible for New Yorkers and its visitors to swim in clean river water for the first time in 100 years. The layered filtration system incrementally removes bacteria and contaminants to ensure nothing but clean, swimmable water. No chemicals, no additives, just natural river water. Like a giant strainer dropped into the river, + POOL will clean more than half a million gallons of water every single day. In addition to contributing to the health of our city’s waters, the + POOL offers Kids, Sports, Lap and Lounge pools. Each can be used independently, combined to form an Olympic-length pool or opened completely into a 9,000 square foot pool for play in one of New York City’s best natural resources. + POOL was initially launched through Kickstarter and is currently funded through the nonprofit, Friends of + POOL.