animation and repeats

Simple question:
I have a texture repeat of 8 horizontal and 4 vertical. How can I make that animate without the repeats going away? Or cant I?

The formula I use now:
llSetTextureAnim(ANIM_ON | SMOOTH | LOOP, ALL_SIDES,1,1,1.0,1,0.025);

It is supposed to be a 80x40 piece of water I would not mind it all to be 10x10 pieces, but then all textures move different... as you see, texture animation I do not get.

Thanks, Marcel