It is not recommended to have a pipe through the base of the dam. I had to have a construction drain as it took me 14 months to build my dam. Here is a picture showing the 6" construction drain as I was about half way up with the dam. Here is a link to the story of my pond project: http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=141770&page=1






Last edited by DC70; 09/24/18 03:05 PM.