Greetings!
I empty my bucket toilet about once a week, along with my other trash. I don’t know the normal frequency for composting toilets, but weekly would still seem about right to me, because otherwise you’ll just be hauling around extra dead weight, that could possibly cause health concerns if kept longer.
A DIY urine diverter can be easily fashioned out of flexible plastic funnel with a hose attached to the outlet, going into a gallon jug. I have contemplated doing this to my bucket toilet, but to date have not found the motivation to actually do it, but I’m a guy, so pee jugs are pretty easy. Whenever I’ve had girls traveling with me, if we weren’t in an actual RV, I switched to typical port-a-potty’s, to make make things easier for them.
Cheers!
A wise man learns from others’ mistakes.”
~ Never_2_L8_2_Learn