I found a "Yankee" daylight tank while thrifting yesterday, and want to be sure I have everything before trying to use it. It will be my first try at home developing. There's a tank, a lid, and an adjustable reel. I assume that I will need some sort of stopper for the lid--will just any cork or rubber stopper suffice? Also, is there supposed to be a gasket between lid and tank, or is that just going to be leaky? It seems like a rubber gasket would fit in it and seal better.