That's kind of what I thought. OK, I'll do a quick check with the HD unions this weekend. If they don't fit, I'll find unions by the same manufacturer.
BTW, I think you misunderstood what I'm planning. The hammerhead won't be turned on. A small remote pump in the bucket, plumbed onto the hammerhead, will be doing the work, circulating the vinegar.
LOL, OMG, if I turned on the hammerhead, I'd get vinegar splashing out of the bucket probably to the ceiling!!
