Okay early last year I built my mash tun but never got around to doing a Hot Liquor Tun, well that time has come! I started with a Igloo cooler from Target, its the same as the other one I have which olds temp very well and is very cheap! $19.86 for a 32 quart, the only problem is is that it is very thick so you need special 3" nipple for it. I bought Kewler Kit ball valve assembly, a Kewler kit thermo thingy and thermo for it, a 1500 watt hot water heater element and a Johnson digital temp control. I drilled a 7/8" hole in the middle bottom for the ballvalve, another hole 3/8" located to the right of that for the thermo. Then around back I drilled a 2" hole just through the first layer of the cooler for the heating element cover which is a PVC Cap in which the wiring will come through to the controller. Then using 1 1/4" hole saw I finished drilleing through for the heating element it self. The element has a supplied gasket but needs another on the inside of the cooler nd also needs a nut on the inside to hold iy in since these usually screw right into a welded fitting on the water tank. I took a PVC bushing and cut most of it off leaving just the part that looks like a nut. I found a rubber O ring in Home Depot in the sink repairs area that fits it perfect. I still need some supplies for it like electrical clamps to wire the control unit and to hopefully drill through the PVC cap. I also need to get a pce. of copper and drill a 1 1/4" hole in that and then cut around that leaving a tab in one spot to solder the ground wire from the heating elemet on. here are some pics but its still a work in progress. I also had to cut the handle on my cooler cause it would impede on the ball valve and thermo.My electric keggle should be in tomorrow!