Thats a great idea to do a die test.But make sure you get all the info that you can from it I like to do a three part test.If you can do the test on a still calm day it will work the best.If you start by putting the die in the closest one third next to the outlet water then check you signs if the die shows up you know where the leak is or at least what part of the pond it is in.Then do the middle then the rest this will help not only to see if you got a leak but the general location. DOC

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