I haven’t done one of these in ages (partly because I’ve found more interesting things to write about, but mainly because the google searches that bring people to my blog are usually about me and my work instead of ranom one-line comments about other people or what have you), but here you go:
“can i wash a glaze off of a bisqued pot and then reglaze ?”
Yes. Just be sure you do a good job of scrubbing off the first glaze coat, because otherwise the dust left behind will affect how the new layer deposits itself on your pot, and you could end up with weird bare patches after firing. Also, you’ll have to let your now-saturated pot dry out for a day or two before dipping it in the glaze bucket. It’s okay. It’s a pain in the ass, but you work isn’t ruined.