Pond Boss Forums POND CONSTRUCTION Building a dam Overflow pipe size

Johnny,

Sorry about taking your thread "off topic". That happens a lot on Pond Boss as people keep asking more questions based on the expert replies to the original post. (I am one of the worst offenders since I am always trying to learn more.)

I am not an expert on protecting steel in the ground, but I have heard some people say NOT to coat it, because of the chance of getting corrosion started behind the coating.

I do know that on very expensive projects with steel in the ground, they frequently utilize a process called "cathodic protection". Basically the good steel acts as a cathode and it is wired to a sacrificial anode. That way the natural galvanic currents in the soil do not result in corrosion of your steel pipe.

I have never read about that being utilized on Pond Boss, but a significant portion of the cost is usually excavating the soil for the anode bed and the wiring. I don't know if it would be feasible on a project your size.

Hopefully, an actual expert will drop into your thread again. Good luck on finishing the work on your "hole in the ground" and turning it into a beautiful pond!

Anything you can do to keep water from contacting the pipe inside or outside will help, but being as thick as it is will help prolong it's life. The galvanized ditch drain pipes that you see put under driveways will last 20 or so years before they rot out. Being galvanized helps but they are no where as thick as your pipe.

Standpipe/riser size, an 8" standpipe/riser should be sufficient for your pond size and water flow. It may be more prone to clogging, but regular maintenance should keep it clear.