Long, round, firm, porous containers for kitty litter

[Ropey]

Woops I've already experienced the downside of kitty litter: the fact that its performance depends almost entirely on the amount of water that's in it. I thought I read that it had a "set-point" of 68 RH. Guess not.

I made two of the above tubos and put some KL in one. Poured some distilled water in, shook it a little, capped it, and stuck it in a plastic bag with a hygrometer. After about 10 minutes it was rock-solid at 68. I thought "Great!"

Then I took some more KL, put it in the other tubo, wet it, shook it and stuck it in an identical plastic bag. Guess I used slightly less water this time, because the hygrometer went down to 62! I pulled out the tubo and added a little bit more water, put it back in the bag. Currently the hygrometer reads 74 and rising!

Not sure I'm gonna stick with the KL. Already seems like more work and uncertainty than I want to deal with. I don't want to have to measure water and so forth to find just the right balance.

Guess the Heartfelt beads are "pre-trained" for a specific RH... maybe I'll think about those.

[Upstatemax]

Woops I've already experienced the downside of kitty litter: the fact that its performance depends almost entirely on the amount of water that's in it. I thought I read that it had a "set-point" of 68 RH. Guess not.

I made two of the above tubos and put some KL in one. Poured some distilled water in, shook it a little, capped it, and stuck it in a plastic bag with a hygrometer. After about 10 minutes it was rock-solid at 68. I thought "Great!"

Then I took some more KL, put it in the other tubo, wet it, shook it and stuck it in an identical plastic bag. Guess I used slightly less water this time, because the hygrometer went down to 62! I pulled out the tubo and added a little bit more water, put it back in the bag. Currently the hygrometer reads 74 and rising!

Not sure I'm gonna stick with the KL. Already seems like more work and uncertainty than I want to deal with. I don't want to have to measure water and so forth to find just the right balance.

Guess the Heartfelt beads are "pre-trained" for a specific RH... maybe I'll think about those.

It sounds like you barely gave it a chance to work...

Pretty much all of these systems need at least a few days to level off. Especially if you add water directly to the litter. It's immediate reaction seems to be to push moisture out. That's why a lot of people place a water source near it and let it absorb water vapor, to avoid humidity spikes and damaging the crystals.