Hi everyone, first time posting. Been doing a lot of searching to determine whether my kettle will be large enough for what I want to do. I'm new to brewing but my buddy has been doing all-grain for a while. He uses the brew-in-a-bag method, but I'd like to include sparging. He brews 5 gallon batches this way (bag method) with a 32 qt. kettle. I just purchased a cheap turkey fryer with a 30 qt. kettle. When I brew, I want my kettle to function as the mash tun in order to do temperature mashing, which many of the recipes I've seen require. I plan on using a lauter tun sparging system consisting of two plastic buckets (one with the false bottom), which is explained in the joy of home brewing book. I also will be purchasing a wort chiller. My main concern is whether a 30 qt. kettle will be sufficient for brewing this way. I also want to make sure that I have a kettle that I can use for recipes that require high grain bills. In my reading, I'm still struggling to understand exactly how much liquid I'd be dealing with in my kettle if I use it as mentioned above. Seems like it would be OK for a 5 gallon batch, but I'm not sure. Any tips or advice is much appreciated! Thanks and enjoy the new year!