Things You'll Need
- Small square plastic tub, no more than 6 to 8 inches long per side
- Sharp knife
- Spiral saw (optional)
- 5-gallon plastic water bottle
- 18-qt. plastic tub
Instructions
Use a sharp knife or a spiral saw set on low speed to cut a circular hole into the bottom of the small, square plastic tub. The hole should be sized to fit snugly over the upper part of the 5-gallon plastic water bottle, about 4 or 5 inches down from its mouth. Make sure the small plastic tub has cut-out handles.
Place the small plastic tub--facing upright--over the 5-gallon water bottle and put the mouth of the water bottle through the hole in the plastic tub. Make sure the two objects have a tight fit.
Fill the 5-gallon water bottle with water. Hold the water bottle and small plastic tub over the 18-qt. plastic container, then turn the water bottle upside down. Stand the water bottle and small plastic tub inside the larger plastic container.
Allow the 18-qt. plastic tub to fill with water. The water level should fill to approximately 3 inches deep. As your pet drinks the water in the 18-qt. plastic container, the water from the bottle will automatically refill the tub.
Remove the water bottle from the 18-qt. plastic tub to refill it with water as needed. You don't need to remove the small plastic tub from the water bottle to fill it.