theoldwizard1 wrote:
valhalla360 wrote:
Maybe if you boondock for weeks at a time.
I half agree. Great for boondocking but it does not have to be that long. 2 or 3 days of boondocking with a family can get your black tank over 50% full !
So that's 4-6 days to 100%...with 4 people not being careful with water usage. If they are careful with usage, you should be able to double that to 8-12 days...hence if you are out for weeks, it makes sense but the standard system does pretty well without the complications for shorter trips.
How many week long boondock trips does the family do? Are you going to swap out the toilet if it's 1 trip per year and several weekends where it's not an issue?
Also, as mentioned, with 2 people the urine must be disposed of every 2-3 days. With 4 people it's pretty much a daily task. This is a downside to composting toilets.
They work pretty good for 2 people but can become overloaded with 4 or more as the urine must be disposed of frequently and the composting requires some of the excess water in the solids to evaporate and start to break down. If you add too many solids too quick, it can turn into a nasty soupy mess.