I have been planning this thing out for a few months and today, I have finally finished it. I had a woman email me that had pea soup for pond water in her koi pond. She tried putting plants in with her koi and they emptied all her pots. My suggestion to her was to clean out the pond and add a plant filter. Well, I was able to get a local koi club to come out and clean the pond and I had volunteered to build the filter. She had a big preformed pond liner that was cracked and tossed to the back of the property. I managed to patch it with a universal patch that I bought from Unitliner. I originally patched it with RV roofing patch which is like single sided EPDM seaming tape. It didn't hold. Then I put the universal patch on but we still had a leak. On a final look today, I found a small crack that we missed. I patched it and filled it up. It hasn't lost a drop yet. I made a bulkhead fitting to overflow the water into a creek that lead back to the pond. As of today, it is completed. Well, my part at least. There is still landscaping to do around it and plants to put in. This is ideal for her and her husband as they love plants. The fish are just pets. I will get pics Wednesday when I deliver a small bridge to go across the creek. I'm happy with the results.
Also, during the construction, her Beckett 3500 pump died so I loaned her my extra HF 1585 GPH pump until her HF 4000 GPH waterfall pump gets here. They were pulling the pump out by the cord and it finally cut one wire.
What I haven't mentioned is, this was all volunteer work as her and her husband don't have much money. Of course, my wife and I got fed since my wife also repaired some body damage on her car. We also get other food from this woman to take home, like bakery bread and pizza.