JayMac,
Sounds like you're referring to the spout on the cooler. I'm actually looking to put a bulkhead in the lid for a sparge arm. If I misunderstood please let me know.
I have a threaded nipple going through the lid with a coupler and barb on the outside and a nut on the inside with silicone washers on the seals. Then I screw on a sprinkler that I made to the end of the nipple.
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