Building a lap pool in California desert and want to know if anyone has had success with jet spray arc fountains for cooling water. Several promotors tout the effectiveness of evaporative cooling by water falls, fountains, arc jets etc... ingot he pool. Can anyone corroborate this? Would like to place three arc fountains on each end of the pool to assist in cooling. Pool only 5ft deep, 50ft long and 7.5ft wide and temps in the summer get to 105F - don't like swimming in soup nor do I want to pay the expense of a cooling tower.