Built my first and only pond from a liner kit about 12 years ago. Had just moved into my first home and after landscaping the garden as a widlife habitat felt a pond would be nice. Have always liked keeping fish and have had many fish tanks since I was a kid. The pond was a real success from the start. Of course as it matured and my fish, mostly gold fish, started mutiplying I encountered filtration problems. A series of bigger pumps and a home made gravity filter with UV sterilization solved most of my problems. The biggest problems turned out to be wildlife. A Racoon ate my prized koi and constant visits from Herons and Egrets resulted in lots of holes in my liner! Truly a labor of love.