Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? 100% Newbie. Help :)

You want the siphon to handle the routine overflow and the earthen spillway is considered to be the "emergency" spillway to handle what the siphon cannot. A siphon can be installed with minimal digging and the inlet can be placed at the bottom of the pond to remove the anoxic water if no aeration system is in place.

You can most likely expect an inch to a few inches of organic material per year build-up in the deepest part.

The local NRCS office NRCS Website should be able to tell you the watershed for the pond and calculate how big of a siphon you would need to handle most of the rain events. It's a no cost consult for you, it's your tax dollars at work. The watershed, the vegetation and the type of soils all are part of the equation in how much water enters your pond.

With the conifers in the background I would be interested in seeing what the alkalinity of the pond is, and the waters' pH. That will also have a bearing on how the weeds/algae will grow in the water.