What to do with gently used cat litter?

Usually our cat is ok with us refreshing the litter as we remove clumps.  The missus moved around the boxes and shuffled the litter and now she (the cat) doesn't want anything to do with one of her boxes.  So we need to change out a whole litter box worth of litter.  What to do with a decent pile of kitty litter that has been used but doesn't have any chunks in it (ie contaminated).  We believe it's primarily a clay based litter without fragrances (Special Kitty from Walmart).

Our soil is sandy so we could put it outside somewhere.  I have a really hot compost pile going with a year's worth of chicken coop cleanings (wood shavings, 16 bird's worth of poop and water) that I could tuck it into.  That compost is eventually going on our garden so I'd want to be sure it's safe if we go that route.  Suggestions or other ideas?  Thanks!

I wish I had put mine all in one clear area where it could leach out the pee and be easy to scoop up and re-use.  As it is, it is strewn around the place.  Even though it is really just tiny clay gravel, it is very distinctive, and far into the future people who come here will be able to say "They must have had a lot of cats!"

Maybe just transfer the unused litter to a different box?

Not sure.  It is rather moisture absorbent (often contains diatomaceous earth), so could be a good soil additive for potting mixes.

Personally, we use the pine pellets (wood stove pellets are the same thing as the "feline pine" they sell at about a quarter the price). Nothing clumps.  Just turns to sawdust soaked with a little ammonia.  Sprinkle that thin so it doesn't smother anything and the plants eat it up just fine.

Tyler Ludens wrote:I wish I had put mine all in one clear area where it could leach out the pee and be easy to scoop up and re-use.  

So the stuff I have isn't clumped, it's just not clean/new litter.  IE it's been used and the clumps/turds scooped out over time.  So if we soak it or let it leach out its badness, it might turn good enough to call "new" again?

Lucas Green wrote:Maybe just transfer the unused litter to a different box?

It's apparently not "unused" enough for our kitty.  That's why I need to find a place/use for it, or a way to recharge and clean it so that it can be good enough for little miss prissy paws.

Good point K, maybe potting mix would be a good place for it...

The prior owner of my place made lots of rock rimmed garden beds. They tend to leak. I use the spent litter in the leaky areas and it seals them up.