Black waste tank connection question...

IAMICHABOD wrote:
Is your second 28a the same way?

RV1 = The RV black tank that I'm fixing because it came back with a patch and it failed on a trip.
RV2 - My other identical RV I can use for reference.

I am fortunate to have two identical RVs (2015 Majestic 28a units). When something is not working on one, I can go and look at the other. Convenient. Well, for this issue, I did look at the other RV but (until now) I couldn't really figure out what they did to connect the black tank to the drain pipe. I could see one clasp (kinda), but that didn't really make sense to me. Here is a picture of RV2 that currently is "fine" and giving me no problems:



Now that I've taken apart the bad connection/patch on the other RV (RV1) and I can see that the pipe slides into the receiving pipe on the tank, I can understand how it is connected on RV2 is done. What they did on RV2 is they simply slid the drain pipe into the black tank receptor connection and then they put a clasp around it to tighten it. Well, I can tell you that the small piece that is part of the black tank is plastic, but it is kind of a thin plastic that is somewhat pliable. However, at the end of the day it is a plastic to plastic connection with a clasp that doesn't seem like a good idea at all. I can see what looks like some sort of flex-seal spray or something sprayed around the connection/clasp (probably because it was leaking!). It doesn't leak now, but now that I know a much better (hopefully) way to connect it I will fix RV2 to connect like my new connection on RV1. Here is the patch I did on RV1:



I might even put one more clasp on each end just to reinforce the connection. I haven't water tested it yet but that will be my next step (...I'm adding a Tornado tank flush too as long as I'm working around the black tank).

Happy Camping!
Chris