I currently have a 3/4 acre pond that's spring fed at a rate of 300 or so gallons a hour. Depth is 8 to 17 ft. The outflow pipe has a 8 inch vert, that drops about 6 ft then pitches to a outflow pond that's 50 ft " down stream" . My little lady wants her " own pond" . So I was thinking of digging like a 30 by 50 hole at outflow hole, then laying down 60 ft of 6inch pipe on dam side of new pond. After seeded and level off put a 90 elbow on it and have the second outflow elevation pipe about 2 feet lower than upper pond, so outflow of first pond would be dropping into mid-depth of lower pond....I did forget to mention I have a emergency spillway on 3/4 pond, it's a 30ft 16 inch culvert that's 6 inches higher than outflow pipe. I have never seen it get close to that elevation.......does anyone see any issues that may Arise with the secondary pond.I dont want purchase 8 inch , I have plenty of 6 inch free.. Iam I correct I'n thinking the 6 inch would have to keep up to everything? The upper and lower pond?
