SiltSock

Quoted text begins.Does anyone have an suggestion for a water resistant sandbag?
End of quote.

Hi Ad Sach,

I use a product made for sediment control, called SiltSock:
http://www.treemax.com.au/erosion/siltsock.html

It comes in 4 metre tubes, and is easy to cut with scissors, partially fill
with drainage gravel and tie off with tie wire or cable ties.

When it gets wet, it dries quickly.

Although it's tough, it won't last forever if it gets knocked around too much,
but it's cheap and easy to replace.

Simon