Making water less murky ... help

[kremator 1064]

Dear community,

We all love our new water playground, but I can't help feel that it is too opaque. Being a diver myself I have experience of different areas of the world and their waters, but the waters could do with being a little less murky.

Anyone have any idea how to see a little further under the water? Not much further, perhaps doubling the distance at the moment.