Strong urine smell in bathroom

[pbitschura]

Our new to us trailer on it's first voyage has a strong urine smell beginning in the bathroom and after pumping permeates the whole trailer. It's a dometic toilet. It appears to be tight and no seal leaks, I could find. I suspect it's a venting issue. Granted, it was 90 and we stayed hydrated so there is that. But black tank level was 1/3 full. We have not used any tank chemicals other than Galgon to this point.
help please.

[nickthehunter]

90 degrees out sounds like the ideal time to use the black tank treatments to try to neutralize the smells before they occur. At this point it’s probably to late to do anything effective. The likelihood of your vent being clogged is about nil.