Hello all. I have a 4 gallon brew pot that works fine but I want to add a ball valve to it so I can use it to hold sparge water when I do AG. I had one but I thought it was leeching crap so I tossed it. My question is how do I add this valve to the pot? Obviously I need to drill a hole in the side of the pot and I have all of the drill bits and plumbers tape I just need to go to the hardware store and buy a valve. I want to make sure I do it right because this is the only brew pot I have and if I mess it up no brewing for a month or 2 until I can afford to replace it. Thank you in advance for your help!