So I've got two female cats, a 1 year old and a 6 year old, and the younger one has such an ammonia stench to her pee that it's utterly noxious.
Common suggestions online are that the cat is dehydrated - which with two water fountains, wet food twice a day, and the sheer monsterous size of the pee clumps, is not the case. They've got three litter boxes which are scooped daily, so it's also not like we're leaving things to fester and grow more pungent. It's not a new development, her pee has always been really potent, so I'm also not thinking UTI.
I've tried sprinkling baking soda in the litter after scooping, which helps a bit with residual smells, but I'm looking for any suggestions to counter this constant ammonia assault.
The culprit:
You should go to a vet. Excessive ammonia in her pee is not good, since you say it's always been this way maybe something genetic that might require medication before permanent damage is done.
Thanks, I'll be giving the vet a call and see what they say.