Been doing it with a Kolsch/US-05/Brett/American Ale/ Combo and its very forgiving of low ferm temps giving very crisp beers. no off flavors. This is my last rinse and am not hording this yeast again but I recommend doing it. You'll like it.
It didn't take but 5 brews in and sure enough, the copper and steel were corroding and rusting. I used generous amounts of teflon tape as well (3-4 revolutions.) A friend of mine alerted me to this metallurgic terminology and it sounded right. He was definitely right. I switched it out and made...
One note. copper and steel fittings should be seperated by brass, or some other metal. The copper and steel corrode. Remedy that with a gatorbite brand fitting for your pipes if need be.
one guy I seen took his whole bucket/carboy, added sterilized water(that has been boiled and cooled) to the whole yeast cake, let it stratify and then pour it into one jar. It's one way to do it