Hi all, I'm in the last stages of constructing a natural fish pond and have a possible emergency!! I hired the contractor who recently finished our almost 2 yr whole house renovation and while they have experience building a waterfall, they have never built a pond this size. They've been wonderful, I gave them Robert Pavlis' book to read and they've watched all the videos I've sent them, regarding construction, etc. The pond is about 35'x50', 3-1/2' deep on one end, sloping to 2' deep on the other end, approx. 35,000 gallons, with an EPDM liner, no filter/pump as this is a natural pond. They added about 6000 gallons of water as they started to add the rocks on the bottom planting ledge. Everything was going great until the installation of "floating stepping stones" across the shallow end. They used mortar to secure the rocks to the supporting pillars and the excess mortar fell into the water. Two days later the water is still a little murky but what I'm really concerned about is the layer of 'silt' that has formed on the liner. Not only am I worried whether it will be safe to add fish, harmful to plants but also, we have 3 dogs who I anticipate will use the pond daily and stir up the silt every time they enter and exit the pond. So if it is harmful to the fish or plants, what are my options to remove it? I need to be prepared when the crew arrives tomorrow morning to give them instructions! Any suggestions are appreciated - thanks!