Dave,since youve done this just north of me how deep would you make it.Ive been thinking about the same thing.I could put in a small pond but it would be in the sun.I could also pump into it so it didnt go dry during our annually dry summers.
Another question is how to keep the preditors out.I do have a local GBH which I promised the game warden I wouldnt shoot(after I got caught with the last one) so sss isnt an option.After all,sometimes a mans word is all hes got left ;\)

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Some days you get the dog,and some days he gets you.Every dog has his day,and sometimes he has two!