Summer heat promotes bacteria growth and outgassing in black and grey tanks. Running FantasticFans and exhaust fans full blast to exhaust the bad odors just sucks more smelly gasses up from the drains and toilet. This is especially evident in the desert southwest heat (currently 110+ degrees).
We use these these products to control waste tank odors:
- Campa Chem Liquid Holding Tank Deodorant -- Start with 8 ounces in the black tank, and add more as necessary, as the tank fills.
Note: This is the same blue chemical used in toilets on airliners, boats, trains, etc.
- Camco TST Orange Power -- When camping, add 2-3 ounces to each sink and shower drain, as necessary. Just before storage, repeat; but leave deodorant in trap (i.e., do not flush drain with water after adding deodorant).
For those who wish to avoid harsh chemicals, there are "greener" versions of these products that work almost as well; although, most are significantly less effective in extreme heat.