EPA and Septic SystemsNO Formaldehyde.
Personally, No Chemicals are needed period.
Waste tanks are 'Holding Tanks' not 'treatment tanks'
That is what sewer plant/septic systems do 'Treatment'
Odors.....shouldn't be any if 'vapor barriers' are working correctly (water in toilet bowl, toilet floor flange seal, 'P' traps holding water, waste tank vents clear, air admittance valves working, etc---just like home)
So NO don't use chemicals, dump waste tanks when full, and fix any broken vapor barrier
BUT IF you choose to use chemicals.............NO formaldehyde OR Bleach
GEO Method (2 cups powered water softener -- Calgon -- 1/2 Cup Dish Soap and 1 gallon HOT water. Mix then dump down toilet after draining tank. Leave in tank and let it slosh around)
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31