I have an ez-cloner, and don't any of that stuff bro. I have 100% success.
All I do is take my cuttings, each dipped into clonex, and laid out on a plate for a while, while I cut the next batch. Than once the next few are cut, I take the first ones, put them into the collars, and continue until all sites are used. The cuttings don't need to be put into water, or any of that. Just dip them in gel, and they're fine out of water for over an hour.
I then fill my clone machine with HARD water. The directions clearly tell you NOT to use RO, or distilled water. If you have city water, just fill some buckets the day before and let them stand to evaporate the chlorine.
All I put in my water is a drop per gallon superthrive, and a small amount of rooting stimulant. I use House and Garden nutes, so I just put a little of their root stuff in that. It's super expensive, so don't feel like you need that spendy stuff. Root 66 works fine.
I also have an oxygen stone on an airpump in my cloner. It takes me at least 10 days to have good roots. I leave them in for longer to get them good and healthy.
Works every time.
As for cleaning, when done, I fill up a 5 gallon bucket, put 1 cup of bleach in it, and put that in my machine. I run it for 1/2 hr or so with the sprayers in, take them out, run some more. Than I do 3 flushes of clean water, throw away the old collars, and always use new ones for the next run.