We have a considerable amount of clumping litter that has spilled outside the litter box, gotten wet and dried. Does anyone know the best way to remove dried-up clay-like clumps that have attached themselves to the carpet?
I am thinking about vacuuming up any loose litter and then wetting the area, hopefully making a "mud" which I can work out of the rug while it's wet. I'm not sure that will work, and it could do more harm than good, so I'd like to see if anyone has some helpful advice about this.
FirstHit
IMO I would try and get as much out as you can when it's dry. Don't rewet it if possible. The bad thing about clumpable litter is that is forms almost a goo when wet.
If it were me, I'd remove as much of the dry stuff as possible, then call a carpet cleaning service. Get their advice before wetting anything.
We have a considerable amount of =A0clumping litter that has spilled outside the litter box, gotten wet and dried. =A0Does ... could do more harm than good, so I'd like to see if anyone has some helpful advice about this. FirstHit

i agree. Do not wet anything. If it were me, I would put on the crevice tool
to vacuum wand and suck up what loose litter you can with it from carpet area.
Push it down between carpet fibers or pile and dig in with tool. Then get a shop
vac (which will suck up wet or damp anything, no big deal) and go at it again
(borrow a shop vac if you have to...or rent one). Best of luck to you.