Water Gardening: Thrifty Ponding Thread, 1 by

wrote:
The tarps I've looked at are industrial grade pvc or polyethylene like the ones at http://tarpsplus.com.
One about the size I'd need would be 200$ plus freight.
ON Ebay, Ponds4Less sells a PPL-24 liner in the size I need (22 x 34) for $320, including shipping. This is the same stuff that Bend Liners in Oregon sells, only the shipping is included.
I haven't checked on the cost of roofing liner yet. I'm wondering how hard it is to clean off the powdery stuff so it will be safe. Also, there really are a bunch of scare tactics out there about using roofing liner instead of the "pond' liner, but I know I've read on this forum that people are out there using it.

Basically, I got carried away, and now my budget is being stretched thin by the liner problem.
Here's a photo of the pond as is. I'm reinforcing the sides with concrete to keep them from collapsing, hence the forms you see. The middle part of the pond is almost 3 feet deep. The shelves around the edges are 18 inches, and in the very back what you see is the bog area. The water from the bog will spill over a stone into the deepest part of the pond. The front area is a sloping beach.

Now to research using a sump pump for the pumping action...