Reviewed public report
One report: conditional outcome
One traceable public report identifies this exact machine and litter and describes conditions or tradeoffs. That is useful real-world evidence, but one household is not enough to generalize.
Why this result
The displayed outcome follows the reviewed public evidence. The machine maker’s class-level rule remains visible below as a separate boundary.
Use this exact record
This is a practical reading guide for the evidence already shown on this page. It is not a controlled test protocol or a guarantee for another household.
Decision focus
One long-haired-cat report describes no tracking, but says the long particles did not fully pass the gate above roughly 20% of the fill line and unused litter entered the bin. Low tracking and good screening are therefore separate decisions.
First-use check
Match the exact Really Great Cat Litter formula and keep the fill within Litter-Robot’s published limits.
Compare the physical fill level with clean litter found in the drawer after cycling; do not use the no-tracking observation as proof of screen fit.
Record coat length and floor tracking separately from screen loss so the two outcomes remain interpretable.
Evidence change
Published boundary
“We recommend a high-quality, standard-weight, clay-based clumping litter”Verified 2026-10-04 · Official source
Reviewed public evidence
These are traceable public use reports for this exact machine and product. They were reviewed for specificity and duplicates, but they are not PawExact tests.
An LR4 owner reports that Really Great Cat Litter does not track for their long-haired cat, but above roughly 20% of the fill line its long particles do not fully pass the filtering gate and unused litter is dumped into the bin.
This record supports only its conditional outcome direction for the named pair and its coded observations: no sticking reported; no clump breakage reported; usable litter entering the waste path reported; no dust or sensor problem reported; no tracking reported.
It cannot establish prevalence, causation, a product-wide winner, a health outcome, or the same result in another household, accessory setup, formula, or machine model.
What is not known
1 independent public report describes real use, but PawExact has not independently tested this pair. Machine guidance still controls the supported boundary, and individual homes may see different sensor, dust, sticking, saturation, or cleaning behavior.
Explore context
Same machine
These records are selected for a shared brand, material, weight class, or reported failure mode—not because PawExact has ranked them as substitutes.