Digging almost done then it started to rain again on the koi pond, didn't expect to be digging this long, as the block stacking and overall design evolved during the process
First attempt so lots of trial and error, I went with 6" thick blocks instead of 8" to allow for more pond surface area
All walls will have mortared concrete blocks to prevent erosion and a gravel base. The pond is partially raised and will be at the deepest 4 feet which will allow the fish to stay outside along with a small deicer. The size has grown from 1000 to 1500 gallons so I needed to order a larger EPDM liner, which weighs about 150 pounds.
The pond will come off the deck sort of like this
but will have a bog filter behind it like this
but had to dig more yesterday to add a bowed front and a side waterfall
I've now got tendonitis on both elbows