now the Jacuzzi is like new, I can't do that)).
But I made a new way of water. I turned the model of the water from the Jacuzzi 180 degrees X. She began to reflect the sky as in a mirror, but I did not use the mirror prefix! And he placed circles above the water, also turned them back and forth 180 degrees. I made the lower water thick, 11 cm, then it is smoother and for some reason begins to affect the upper shapes of the circles (they are still thin 0.1 cm). In general, an unpredictable result begins here at all, trial renderers are needed to check, bugs are constantly appearing. 
