Good idea on the ozone cleaner! (I wish it was just a critter or his calling cards)
But I did have a slap-my-hand-on-my forehead epiphany! I assumed because he SAID he cleaned the tank out really good, that ACTUALLY DID. I have based EVERYTHING I've done on the assumption he was telling the truth...when will I learn??? 🤦♀️Anyway, I watched a video that explained the entire water system, focusing on the black tank & how to clean it. I got the honey pot and emptied the rv tank...dark brown. Soooooo, I kept adding 5-8 gallons water using the hose jet and kept emptying it. Well, I filled the honey pot & the water still wasn't clear.
So what I'm getting around to is that IT MIGHT ACTUALLY BE THE BLACK TANK. Easy fix, even tho the smell has permeated everything, but at least I know...I think. I'll know more in the next couple days!