Dog Water Needs
Pets may select toilets for quenching their thirst because the water is often quite cool. Obviously, the pets' own bowl is the preferred source from an aesthetic perspective, but if the water in the bowl is clean, it is most likely that no harm will come of it.
If residue-type toilet bowl cleansers are left on the bowl (pucks) or placed in the toilet tank, some of these chemicals could be harmful to pets. If these are in use, it is important to close the lids and the bathroom doors securely. In homes with pets, it is inadvisable to use these products. A problem can also occur if the pet gains access to the bathroom during routine weekly cleaning while the toilet bowl cleaner is soaking the bowl. Some of these products are very irritating/toxic and care should be taken to exclude pets from the bathroom during these cleaning routines.
Provide fresh cold water at all times (may need to change it 2-4X daily)
Make sure bowls are placed in easy-to-access spots—one may place one bowl on each story of a multi-storied home, especially when pets are old, young, or have mobility problems such as arthritis
Add ice cubes to the water in the bowl or use an insulated bowl to help keep the water cold
Close doors to bathrooms and keep toilet lids down
One can even install childproof locks on the toilet lids for large, strong, or more determined pets.