Options for black tank flushing?

I'd never had any problems with my black tank with no type of flushing needed with two different Hybrid TT's going back to 2007. But our Bullet came with a few extras as part of a package, one of which was a black tank rinse, and I've found it to be a pretty cool addition. I don't use it every time we dump and I never use it when there's a line although we tend to dump at places and during times when the dump stations are not busy. I've yet to have any faulty black tank sensor readings after using the rinse.

I don't know if I'd undertake a modification to add one to an existing TT, but I would definitely insist any dealer install one on a unit I was serious about if it didn't already have one much like a Fantastic Fan/similar upgraded exhaust fan.