I love my Litter Robot II. I can go a week, with my three cats, between litter changes, and these changes only require a bag replacement and addition of fresh litter.

However, I have two suggestions for the Litter Robot III.

1 – Enable waste pass-through.

Since my unit is now out of warranty, I did this myself (to allow a little buffer between changes, should I forget). I cut out a section from the base, extending from the back between the hanger where the tray rests, around the front of these brackets and to the sides inside of the inner reinforcing rod on each side, and along them to the front support. I then cut the tray to match (the tray cannot be removed entirely, since it is needed for weight-sensing purposes), and created a sleeve from the bottom of the globe through the bottom of the base. The sleeve eliminates the possibility of a mess in the tray, which would be reduced even without this by using a tray liner with a hole. I can then use the tray normally, without any pass-though, should I choose.

I then created a cabinet, similar to those offered through this site but not as fancy, that supports the Litter Robot on a second tier and with a much larger waste bin than stock below. I’ve heard of those mounting their Litter Robot atop 55-gallon drums, though I expect they become difficult to empty .

2 – I have not done this, as it would require some work with weight sensors, though perhaps it could simply make use of the existing sensor. The unit could be designed, or fitted as an add-on, with a container behind and slightly higher than the bottom of the globe, which can keep the litter tray within a certain tolerance of fullness. The current sensor detects an over-weight condition, but, whether as-is or with modification or supplementation, could also detect an under-weight condition. When the sensor detects the unit to be under-weight, it could release sufficient fresh litter to return the unit to normal weight. Perhaps this could make use of the new bubble as a pass-though into the unit; if not, another pass-through would be needed.

Between these two modifications, neither of which should be difficult, the Litter Robot III could be self-sufficient for an extended period. Together with a large user-provided base container and automatic food and water dispensers, which are already available (but which Automated Pet Care Products could certainly improve and market in color-coordinated fashion), an owner could leave for a two-week or even month-long vacation without worries that the regular pet-sitter fails to provide proper care; such a sitter would not need to tend any issues, but only notify you in the rare event a problem occurs.

A tech-savvy but stingy owner could simply set up a webcam rather than pay a sitter/daily visitor. Though I would not recommend such with a single cat; he or she will get lonely quickly; I could do this since I have three cats that will entertain themselves.

Michael

Bristol, VA

Have you ever found your Litter-Robot stopped in mid rotation and possibly with the red light blinking? This could be a sign that your cat sensor needs adjustment. Sometimes after adding litter or replacing litter in the globe, the total weight of the globe becomes high enough that during the rotation or even while stationary (without cat inside) the cat sensor is triggered. If the Cat Sensor is triggered continuously for more than 2 minutes then the red light starts to blink. This problem can be easily fixed by simply adjusting the Cat Sensor. Here are recommended steps for adjusting the Cat Sensor:

1. Turn off unit and remove Globe.
2. Turn on power with Globe removed. Does gear turn?
3. If NO go to step 4. If YES, turn off power and go to step 5.
4. Try ‘exercising’ the Safety Line in the Base – push and release it several times such that you hear the clicking noise of a switch. Turn the power off then on again. Does the Globe now turn? If NO try repeating, but if still no rotation of the gear, then you will need to contact Customer Service. If YES, you are done. Re-position Globe and verify that it completes a clean cycle (in this case adjustment of the cat sensor was not needed).
5. Turn the Base upside down so you are facing the bottom surface. Find the round black adjustment foot and simply turn it Clockwise (2) full complete turns (720 degrees).

6. Replace Globe and turn the unit ON. Verify that the Globe completes the clean cycle – if YES you’re done. If not, repeat step 5. If you are still having trouble, contact Customer Service .