Thanks Robert; I've emailed them to ask about their products.
Anybody got any suggestions for running alternatives to plain water? I suppose we could model the falling water in glass and play a tape recording of the noise - it would fool some of the people! But is there a liquid that is relatively non-toxic, doesn't foam and has a viscosity close to water? (I suppose I could argue it as a political statement if we ran it on oil rather than water
The 'fountain' is really more of a series of waterfalls set into a wall and the artistic effect is created by the noise and turbulence as the falling sheet of water hits the collecting pond. My involvement is as an engineer, working with the artist, to try and solve the foam-party joksters.
What is the chemistry involved when a soap solution is added to the water? Is there any way of breaking the process? Is it as simple as changing the Ph of the water or what would the effect be of say, positioning some dc powered electrodes just where the water 'lands' (in effect a mini hydrogen-generator) to change the foaming reaction? I presume the basic problem to solve is lowering the surface tension that the soap solution is encouraging?
There must be an 'elegant' (and fun) way of solving this problem.