Advice from guys who Parkerize~!

So I just finished up 5 park jobs in a row and the cheap pot I got to start is toast imo.. Any advice on picking the right SS for this job guys? I don't know a lot about Metalurgy to speak of so I really have to rely on others knowledge in this area when it comes to various steels etc. Or I guess which grade would stand up to reheat and the solution without scaling and not be reactive to the solution, also advice on any kind of screen or baskets for parking small parts that would be non reactive. I have noticed a good deal of scale build up in my solution, even pretty quickly after cleaning and filtering.

Basically what is a better grade of Stainless to use? 18/8 18/10? I only want to do this one more time and get it right... My hot plate is a little slow, but keeps temp pretty good once it get's there.

 

I know one of the biggest keys is something non-corrosive was wondering if anybody uses anything besides stainless steel maybe ceramic? I just know that the pot that I currently have Is no longer going to work for me I don’t believe. Noticing a lot of corrosion already in the bottom of the pot. Just trying to get out of the trail and error stage and buy what’s needed and not have to keep fishing around LOL