For measuring and marking the holes on the top pan. 2 inch squares evenly on the surface. They don’t have to be perfect, just use this as a guide when drilling. Where the lines intersect, you will drill a hole. If you are using an existing litter pan, disinfect before measuring. This part can be daunting.

Try to guess which square was my last. Again, your holes don’t have to be perfect, but having many holes will allow all the sawdust to sift out effectively. This will create a lot of debris, have a vacuum close by. Place the top pan onto the bottom pan and fill with a bag of Feline Pine or store brand pine litter. In the bottom pan, place a handful of pellets. This will absorb and urine that might fall through the top pan.

When cleaning, first scoop out any feces. To help sift out the sawdust, stir the pellets thoroughly, the sawdust will naturally fall to the bottom while the good pellets will rise to the top. Bags of litter will last much longer because there is virtually no wasted pellets. 9 each and bought 2. Hi there, thanks for the demonstration. The guys in Sweden have a product that does this. I am not sure it is available in the US.

If anyone finds two boxes that work, please let me know! You’re right, it works in reverse compared to other sifting litter pans. Instead of sifting the good litter through the holes, this pan sifts the bad «sawdust» litter through the holes, leaving the good litter and feces that can be scooped out. To answer your other questions, the pine pellets are compressed sawdust and will start to come apart when wet. I like this litter better than corn because it is less dusty and cats don’t track it as much. Great idea, however doesn’t solve the problem of removing feces because the pine pellets won’t go through a regular sized scoop.

We have actually bought the same thing, works really good. Does catch some good pellets takes a bit to get used to using this without catching too many good pine pellets. Where did you get it? I got my scooper before I built the box, but here is one from petco that is cheap and looks to have some wide slots. Tinker L makes a good point of just widening the slots of your current scoop. I looked at the petstore and online, and I can’t find any two litter boxes with a similar perimeter and different depths.

Does anyone have any brand or store recommendations for where I can find it? They can make great litter boxes. Sometimes you can find the same brand of bin in multiple depths but with the same length and width. Wouldn’t it work to put spacers between two pans the same size? Maybe PVC plumbing connectors or slices of pipe? Smaller store might be able to help you out and order one for you though.

I am torn between putting the effort into making a really great catbox, and spending that energy to just train the cats to use the toilet instead. Training the cat to use the toilet is fine for their urine, but cat feces may contain eggs of Toxoplasma gondii, which are able to survive the wastewater treatment process, contaminating waterways. While Toxoplasma rarely affects healthy people, it can cause defects and brain damage in babies whose mothers were exposed when pregnant. Brain disease can also develop in people with compromised immune systems. In addition, Toxoplasma has been shown to harm sea otters and may affect other wildlife as well. Dispose of the cat’s feces in sealed plastic bags via your waste management company. Toilet training was my first choice but I didn’t have a spare toilet in the house to dedicate solely to the cat. Say, has anyone had a problem with the cat breaking, falling through, the hole-drilled floor of litter pan? SIT right on the bottom? I have been looking for this for a while. I have been using modified version of what you have, but not as practical because I could never find something with holes small enough. I never thought of doing the holes myself.