That is fine if you have a ready supply of water to wash out the drum. Many darkrooms don't and the necessity of having multiple drums just increases the cost. There is ALWAYS a risk of cross contamination with drums - don't try to convince me otherwise. I have been there, seen it happen and done it myself. The drum method also means between washing and drying and printing there is a possibility of a temperature difference between the drum and the chemicals and may make a difference between a good print or a waste of paper. I'm assuming the drum is on a rotary processor as well, which takes up a lot of bench space. A 12 x16 NOVA 3 bath which I use takes up a footprint space no greater than 13" x 7" and there is no need to rinse out and dry the drum between prints. Into the developer 45 seconds, Into the stop bath 30 seconds and into the blix another 45 seconds and it is done. The processor is already ready for the next print with no rinsing out and absolutely no risk of differing temperatures and no risk of cross contamination! Don't knock it until you have tried it. The initial fill of chemicals (about 2 litres of each} are replenished with a set amount that has never failed me or many others. The developer which is the main chemical that can go off, has lasted on occasion up to 18 months with adequate replenishment. Even then it was only changed to enable me to clean out the 3 chemical slots. In my mind a drum process is a no brainer when it comes to home processing colour prints. Even after finishing a session using a deep tank processor there is no big clearing up needed. A quick wipe down, replenish all three slots or if needed a top them up as well. That is all there is to it. It is ready for the next session in a day, a week, or even a months time. Just switch on and go.