Just a little word of caution / advice for those of you who may have a garbage disposal in your wine area, or use one in your kitchen, though one that gets regular use is less likely to have issues.
First, to set the stage, the sink / disposal has been in use for about 2-1/2 years, and doesn’t get a lot of action, as it’s in the wine room and only gets used by me when working on wine related activities. Last week I noticed that the disposal was stuck, second time it had happened, no big deal. This unit doesn’t have an Allen fitting on the bottom of the shaft to work it loose from under the sink, the manufacturer recommends a wooden broom handle from the top for this task. After a lot of effort with no results, I finally declared no joy and called my plumber.
When he got the unit removed, the grinder plate and tub were completely corroded an fused together by corrosion, almost like they were welded together. He asked me what the hell I was putting down there, I replied, “The usual, water, gross lees, sulfite solution, stuff like that.” As the words were coming out, it was registering, the pH of this stuff and caustic nature was probably at play, which he quickly agreed with once I explained what that stuff was.
Needless to say, the unit had to be replaced. We opted, at some cost, to install a commercial unit with all stainless parts to mitigate the situation in the future. His additional precautionary advice was to flush the unit well with fresh water after every session of use, and to allow it to run with fresh water flowing on a regular basis when not in use. I’m sure that if didn’t sit idle for extended times after having had sulfite solution dumped into it, it probably wouldn’t have happened. Never had a problem in my kitchen when I did my winemaking in there, but it gets used a lot for other stuff.