I've posted a few threads looking for advice on our green murky water, silt and snail problems. I hope this thread adds the photos I think will help everyone understand what we're in for with this huge task and also help those people who may be thinking of designing a new ponds with rocks for that natural look to maybe think again and forget it. It's not worth it after you learn the hard way. I hope they show up....The green algae photos were taken April 23rd the day we had it drained by a company and power washed...which are the clean looking photos that follow. Little did we no that having it power washed ruined our pond so badly and the people that did it contaminated our entire pond and all of our fish with parasites and possibly those tiny snails, etc. The 5 holding tanks they brought to house our fish during the job were never sanitized and each had pond water in them from previous jobs that day!! Horrible what we've been thru, didn't realize the effects until a week later and our fish were in there before I knew they hadn't been cleaned. Another hard lesson of new pond ownership, but it never takes a second time, it hurt too much the first time. Don't let that happen to you, fish are healthy now but they went thru a lot to get them free of all the uglies that came into the pond. Also the pond looked beautiful for approx. 3 days then started down hill and now it's green and murky and covered again with algae even after adding two 50 watt UV bulbs in May.