OK here is the thread

http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=162891&page=39

This was perhaps one of the most informative things on pond leaks i have read. Very good for anyone with a pond leak.

most were trying the DB100 DB150 and DB 200 product. I saw no one with any results post on ES-113.

In addition i saw nothing about pond liners and their success or failure or where to go for installation or purchase. I am going to call Otto soon for his input.

Any thought on running a 100 feet of hose or so from a creek on the back of my property? Man some of those folks in the thread are really good at working pumps etc. - forgot to add i am 70 yrs old and not as able to do the work i use to.