Any sugestions how to properly render a volume of water like the attached swimming pool? In the attached image I've used a glass material with zero roughness, I slight tint of blue in the color, solid checked and a density value of 100 000. Still the water looks murky. Even with the color set to all white I fail to get it clear. If I uncheck solid then it's clear but the refraction is all wrong and the water is almost invisible (second image).
Also, caustics on the bottom of the pool would be nice. Is it possible?