I'm trying to build a DIY ice bath (Wim Hof style ice baths) using a chest freezer.
I have a Magic Chef small size chest freezer (pic below). I need to drain the water in it every couple of months or so. There's a drain hole inside the freezer with a plug. And there's a small drain outlet to the side. The outside drain hole is smooth on the inside, and has no threading. I thought it was 1/2" wide and got a 1/2" pipe joint from the hardware store. However, the joint is too large for the hole. My question is:
How to I go about sizing it (I tried using a measuring tape last time but apparently that didn't work. Anyone got an easy hack to do this?)
Is there a name for the kind of joint I should be looking for?
The drainage outlet is to the bottom-left of the freezer in the pic below.
I've put my index finger tip near the hole to help understand its size better.