water crosses over the stones

Hello, I am Tom

I set up the water tank on the left, the front of the tank set up a pile of rocks, the water in the tank when the water flows out most of the rocks will be pressed under the water, the water crosses over the stones(Weight=2.6), thus causing the stones will not be washed down the stream.

But I hope I can realize that the water can wash away the stones.

Can you help me, please?

Thank you!

Best regards!


Sign In or Register to comment.