I use my well to keep my pond topped off. I was looking for a way for it to stop flowing when it’s full and start flowing when it drops to save me the hassle of Turing the flow on and off all the time.

I found these online and ordered the 3/4 inch one. It does not flow enough as the internal opening is much smaller than 3/4 inch. Other than that is perfect.

http://www.ebay.com/itm/1-2-3-4-Floating...k-/331142678546

I cannot find one like it that is made for larger flow rate.

One thing I need to consider is my well flows a good volume but a low pressure so I do not have the pressure to push through small diameter.

Any Ideas on where to find something like this made for larger flow rate with larger diameter openings...

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