1. Keep the toilet lid closed
cleaners/chemicals used to keep toilets clean can harm your pets
2. Do not flush cat litter down the toilet
There is NO SUCH THING as flushable cat litter. It will expand and clog your drain.
3. Keep pets away from standing water
Do not allow your pets to drink water from sinks/tubs that are backed up. TAKE EXTRA PRECAUTION IF YOU HAVE USED ANY DRAIN CHEMICALS OR CLEANERS.
4. Keep cabinet doors closed
Leftover chemicals may be on copper piping which can get on pets. When the pet grooms itself they will be ingesting the chemicals
5. Do not place your cat litter box in the tub
Cat litter that falls out of the box can fall into the drain. The cat litter will expand and clog your drain
6. Do not put dry pet foods down your disposal
Dry pet food can expand and clog your drain.
7. Cover/cap all clean outs
Small pets can fall into an open cleanout along with your pets toys. Large pets can step into the open cleanout and injure their legs.
This information came from The Plumbing Company