[wagurto]

What setting are you using in sketch up to achieve a water surface?
thanks

[Sheik]

Water works well with dielectic and nd at 1,33 (if you want transparent water) (but plastic is faster). Use a bump if you want waves, “Glass Sky” should work as texture. Set map type to Bumping and bump strength to something like 30-40.
How does that work for you?
Sheik