wowow... never thought of that. to help heat the water for those of us in the frozen
tundra of zone 5. Ingrid

Stephen Henning wrote:
Google "pond dye" and you will find lots of sources. ..............assist with solar heating.

I would think with a black liner, one wouldn't need much dye. At least
around here (So Central WA) some people have black bottoms on their
swimming pools, just to warm them up early. Only problem, they can get too
warm when we hit a streak of 100 degree days. ~ jan


~ jan/WA
Zone 7a