Your backyard is looking great @CometKeith . I love your new patio. I can't believe you are going to have to redo your pond so soon. There are things I would change about my pond, but after 14 years I've learned to live with it the way it is. I don't have the ambition or energy that you do!
Sorry about your koi. I've always bought my koi small (mostly because of the expense). Sometimes I had luck and sometimes I didn't. In 2005 I bought three koi - two died in a month and the other one died six months later. One of the goldfish that I bought at the same time is still alive. In 2006 I tried three more koi - one I still have, one lived over 8 years and the other lived 3 years. Then in 2009 I tried three more small koi - one died after two months, and the other two I still have. I guess why I am telling you all this is because under the same circumstances, some koi made it and some didn't. I hope you have better luck if you try koi again.
Sorry about your koi. I've always bought my koi small (mostly because of the expense). Sometimes I had luck and sometimes I didn't. In 2005 I bought three koi - two died in a month and the other one died six months later. One of the goldfish that I bought at the same time is still alive. In 2006 I tried three more koi - one I still have, one lived over 8 years and the other lived 3 years. Then in 2009 I tried three more small koi - one died after two months, and the other two I still have. I guess why I am telling you all this is because under the same circumstances, some koi made it and some didn't. I hope you have better luck if you try koi again.