Yea, the book I have shows using a liner and mortar on top to fill in
the cracks between the rocks, to make it flow smoother and look better.


Phyllis and Jim Hurley wrote:
Hi Michael,

A stream that long and wide will be very prone to crack and leak! Will you
reinforce it? Have yo thought of liner...flexible and probably cheaper.

We have a cement pond, but went to liner for the streams.

Good luck.

Jim