All steel pipe rusts through at some point in time, Im with Bill and Roundy, PVC will not be too extremely expensive or labor intensive while the pond is empty and will last indefinitely. versus draining the pond and replacing the existing metal pipe, along with your entire fish population in 5 yrs. jmo
My experience with metal and cast iron, if you will remove the existing rust that is showing on your standpipe you would find some extremely thin spots.
Last edited by gehajake; 10/15/19 08:43 AM.
