Unfortunatly ponds are something that won't show problems until after the bill is paid and equipment moved out. The track loader probably did very little good with compaction.
It would be expensive to redo it, but that might be your best option. I would def. not pay this guy any more money. I would get legal advice before proceeding just to see what your options are. You did take pictures of the leaks right? And would also get another builder to give an estimate to fix this guys work.

Last edited by spinnerbait; 08/05/12 04:49 PM.
"I have not failed, I have only found 10,000 ways that won't work"
Thomas Edison