Pool Fountain above Swimming Pools, Adjustable Water Dual Spray Sprinkler Pool Fountain for Inground Pools, Fun Pool Waterfall Sprayer for Backyard Outdoor, Grey

The cheapest option is to get a submersible fountain pump and screw this on top of it. Set a timer to have it run overnight. This works great and keep my pool cool all summer. The pump was about $250. Kompoll Pool Fountain Above... https://www.amazon.com/dp/B0CSK2QK4Q?ref=ppx_pop_mob_ap_share