Good stuff, thanks Brettski. I'm not doing anything but these four 6x6's until the pond is full, so I'm digging the holes by hand with a posthole digger. I've already dug out the rough holes and was hitting quite a bit of limestone just a short way down. So the sonotubes aren't going to go down as much as is usually recommended. But they should be fine as I decided against a roof, and didn't end up getting 16' 6x6s. I'm filling the tubes by hand with bags of sackrete. When the pond fills up to "summer pool" I'll be taking a swim to finish the dock
Not ready to decide on deck level yet until I see where the water level will stabilize at.
