The easiest is the surface skimmer AES part number S750B. It is installed
in the middle of the pond with no holes to cut in the liner. I have
installed two Pondsweep skimmers in working ponds. It is very difficult to
hold the liner up, dig the hole, install the skimmer box, and then attach
the dirty liner with the silicone sealant. For one of the ponds, I cut a
piece of plywood slightly larger than the skimmer and slid it down behind
the liner before digging. This worked for holding the liner up, but it was
difficult to get the liner pulled back far enough to get the plywood
installed.. After the hole was dug, dropped in the skimmer, pulled the
plywood, sealed the liner to skimmer, cut liner, installed weir, and face
plate. That skimmer did not have the holes drilled for the screws,
manufacturing defect I think, and I had to drill the holes underwater. Used
an old hand drill and then treated the drill with WD40 to keep it from
rusting. It helps to lower the water level as much as possible.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html


"Dan" wrote in message
...
What is best way to add skimmer to an established pond? Either diy or
store
bought. Plans? Websites? Thanks, Dan.