Are you considering having fish ?
if you are the gravel and rocks will disapear under a layer much never to be
seen again and when you need to clean the pond out it will be a nightmare.
I did use method B'ish filling the pond to just below where rocks are
going then filling to just below next layer etc

Jon
"Lynn Strickland" wrote in message
ink.net...
I've seen two approaches:

A. Put down underlayment, liner - then fill the pond to settle the liner.
Drain the pond, then put in the rocks, gravel, etc.

B. Put down underlayment, liner, rocks and gravel - before filling the
pond
for the first time.

Is plan B okay?

One other question . . . the 45 mil Firestone liner is supposed to last
for
at least 20 years. How long have they been in use? Is it going to fall
apart at 20 years and one week, or will it likely last for 30 years? Does
anyone really know [I will have the liner completely covered by rock
and/or
gravel]?

Are leaks inevitable, something I should plan on dealing with regularly,
or
can I expect years of leak-free use?

Thanks