Black Waste Tank Bypass

Really like the mod. Great work

Yes. The valve is before the tank. And, I made sure that the tank has water and chemicals in it. It can still be used at any time. All I have to do is turn the switch, and whala, it will flush out like it used to.

My only concern would be buildup in the black water tank itself.

Oh wait, you installed the divertor prior to the black tank, right? Never mind, then. :-)

Ah yes, Venting. I tied my sewer pipe into my pre-existing vent pipes. Also, the grey water tanks are always left open and running, which is also tied into the sewer pipe, like it was before. There is venting there as well.
As for the 90 degree angle fitting, no problem. I assumed that since the bull run valve was originally made for outdoor septic systems, it should work for my system. The bull run was made to be installed underground & horizontally. So, I figured that by placing the valve vertically, I would get a better and stronger flow.
Like I said. All works great. No smell, no gases and all poop runs downhill!! :-) Hoping that the idea may work for someone else.

I was just thinking that that 90 degree fitting is awfully tight. I would have used a more gradual angle.

Just a thought. Many newer parks use your tank vent for venting the sewer lateral at your site. Park gases may want to come up your toilet when you flush. You may not have any issues, but if you get more than normal odors, it could be the venting situation.

I am trying to post another photo;