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Old 10-23-2018, 08:11 PM   #15
Junior Member
National RV Owners Club
Join Date: Aug 2012
Posts: 18
I had the same problem with my 2000 Tropical. I live full time in it. At least twice a year, I execute a deep flush, which means fill it and drain it several times and use the wand directly from the toilet. Afterwards, I fully fill it with clean water and drop 6 cups of Odorlos treatment (V77012) and let it sit for at least one week. The longest, the better. I usually do that when I'm traveling not using the RV. That reduces dramatically the odor. I keep using Odorlos every week (3 cups) after regular clean up keeps it from smelling at least 4 days even in Texan hot weather. Good luck!
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Old 10-25-2018, 02:39 PM   #16
National RV Owners Club
Join Date: Apr 2018
Location: Seattle, WA
Posts: 73
I had this issue in my old class C. Turns out there was a squirrel nest or something being built in the vent tube from the black tank. Drove me mad to find the source of the smell then on an unrelated fix I was inspecting things on the roof and noticed straw coming out of the vent tube and it was partially chewed.
Yup, vent tube 100% clogged. removed everything stuck in it and made sure it was clear with a long rod and that seemed to fix the issue.

Something else to check
-BigRed- is offline   Reply With Quote

smell, tank, water

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