Are you going to add a dump valve to the Brew Bucket

No.  

We tried a few things but were never really happy with the results. So for the time being, we've tabled any notion of doing a yeast dump on the Buckets.  If you really need a yeast dump, please see our Chronical line of fermenters on the site.  And if you have modded one of our Buckets with a yeast dump and you are happy with it - we'd love to see what you did and please send your pic(s) to [e-mail] !