Hilarious (well not really I guess)!
I dump the pellets in a regular litter tray. I scoop poops out more-or-less daily and then I just dump the whole thing when it is more sawdust than pellets. Probably about once a week - but it is a bit hard to say exactly as I have 3 cats and many litter boxes and my cats change their minds on which is the best litter box to use with some frequency!
Also, and I am not advocating this particularly if you are pregnant or immunocompromised, but I compost the used cat litter. Everyone says not to do it because of toxoplasmosis which can be serious if you are pregnant or immunocompromised. However, I am neither of those things, and toxoplasma is endemic in the wild fox population and I have lots of foxes, so I cannot find a good argument why my cat litter is any more dangerous than the foxes pooping around!
I don't use the cat litter on my vegetable garden, but it goes on the roses or around newly planted shrubs.