Barr Plastics has been very good. I took the black tank out there today to have the fittings welded in place. The 3" opening just barely fit onto the tank location I indicated. They actually trimmed off about 1/2" of the fitting because it was quite close to the edge of the tank. There was some discussion on the Transit user group website whether the cross-nuts I used will be strong enough to support a full tank (I tend to over engineer things and always want to be on the safe side.) In the end commenters seemed to agree that the materials I used should be plenty strong enough. Nevertheless, I'm going to make a couple of additions to be extra safe. Heck, we are having a toilet system with 28-29 gallons of capacity built into Redford, obviously we're the type of people who do not like "surprises!"
The tanks and some of the straps and hangers got some spray painting today. Several more cross-nuts got installed inside to get ready for building the bathroom framing. One more big hole was drilled into the side for the shore power entry. Just like everything else, I couldn't finish that job because I realized I forgot to buy the 10/3 wire needed to complete the job. I thought I had all of my wire but realized that I had planned to buy the piece at Princess Auto (all of the other wire I bought online as it's marine grade wire - quite pricey!) Yet another quick shopping trip tomorrow morning for the wire and some more spray paint. There have been and will continue to be a gazillion visits to Home Depot, Princess Auto, Lordco, Napa Auto Parts, online to Amazon, etc. before this project is over!
Calvin here - after spending almost 33 years in education as a high school teacher, elementary teacher, and elementary administrator, it was time to retire! I did so happily and with no regrets; it was a terrific and fulfilling career. I do enjoy building projects as the design and building process is very therapeutic and you see a completed functional product in the end. Now to combine the build with another of Angela's and my passions - travel - is something we're really looking forward to.