The best fogging systems are created using specified fog risers and an Aero Mist 1000 psi pump unit. Fog systems are extremely popular to beautify and cool an area in your backyard or your pool. When our fogging system is activated behind your waterfall, the accumulating fog cascades down the waterfall and gathers above the pool. Many customers have enhanced the effect in the evening by adding lights around the pool to light up the fog.