I converted two weeks ago (tomorrow) to using pearls from the "premium clumping litter" I was using previously. While I can't give as glowing a report as smokymittens, here are my first impressions after my first litter change-out:
The first set of pearls used about 2/3 of a jug from petsmart, with a little loss during the two weeks. The second change, performed yesterday, took (not surprisingly) the same amount.
The first two days were nerve-wracking for me, as I just changed all the litter to the new pearls and assumed my two kittens would adapt. They adapted like champs, but since the pearls absorb the urine I wasn't sure for a few days that they weren't finding new and creative ways to deposit urine elsewhere. However, eventually some discoloration started showing up in the pearls, and I grew less paranoid as the days progressed. I don't recommend the "switch everything in one day" approach, even if your cats/kittens are very adaptable as mine.
The GOOD:
- Since urine is absorbed by the pearls, there is no urine clumps in the box to be broken up (with cheap litter), or squished into component parts (by a backward-moving rake that didn't catch the clump during the pickup phase ).
- As noted, the storage container can now hold a lot more, since it holds only poo ( the urine stays absorbed in the pearls ). I estimate the container now holds 4-5 days of poo, where before it would hold at most 2 days of waste with my two kittens.
- Also, odor is down by quite a bit. Urine absorbing really helps.
- With no real moisture in the box during cycles, the problem of rusting rake(s) is just plain gone. At the time of litter change, the rake looked just as clean and shiny as when I put the pearls in.
- An additional bonus is that without the urine clumps, the motor seems to not have to work as hard to rotate the dish through the rakes during a cycle. I feel reasonably confident that the pearls will likely extend the LitterSweep motor life.
- Litter changing was largely uneventful. I went a little two long before attempting a litter change, and was informed by my cat on day 12 that he refused to use the litter box ( poo in the closet ). A change of the litter revealed that a very small amount of urine had gathered to the bottom of the spinning tray. Fifteen minutes with soap, water, and paper towels was all that was needed to clean everything, and perform the entire pearls replacement.
- I'm guessing based on my first experience above, that litter in my house will have to be changed every 10-12 days (leaning towards 10), and I'll get three changes out of two jugs of litter. (10 days/change) * (3 changes/jar) / ($15 / jar) = $1.50 per day for two poo-proficient kitties.
The BAD:
- Pearls are larger than clumping litter (no surprise there), and are mostly too large to fit down the "grate" on the kitty ramp if you've bought it. As a result, there is more scatter problem with pearls (particularly since they like to bounce on hard plastic surfaces when scattered by little paws) than with clumping litter.
- Pearls, once scattered, are both harder to see on light-colored carpet (like ours), and harder to clean up. It's like trying to corral a bunch of little tiny marbles. A good litter mat is highly recommended to preserve sanity.
- My kittens, at least, seem to want to dig in pearls much more than they ever wanted to dig in traditional clumping litter.
- Pearls are noisier when bounced around by swishing kitty paws or a running cycle, where they bump around against the rakes. It's not a big deal since the motor is already noisy, but it can take some getting used to.
- Pearls are more expensive than clumping litter.
- Pearls don't change the UltraSweep's ability to detect when it needs to operate. With my kittens, it doesn't figure it out as frequently as it should, and I run a manual cycle once a day. On the plus side, since the urine is absorbed, the box is able to catch all the poo with a single manual run in most cases, which was never true with the clumping litter.
Overall, I'm pretty happy with the conversion. Less smell, less dust, less maintenance, and the box looks pretty good almost all of the time. I wish the cost of litter was less, but c'est la vie.
I also wonder, since Pearls are non-clumping and in small quantities when attached to the poo, if the waste bucket (with poo) could just be flushed down the toilet. If so, that's a bonus in my house.
I considered trying out crystals instead of pearsl when going to PetSmart ($10 instead of $14), but finally decided "if it ain't broke, don't fix it". This is the best solution I've found to date. While I don't think any solution is the perfect litter solution for every household, the LitterSweep / Pearls combination works very well for our household, and I am happy with the results.