You can also use a kettle or electric water heater to heat up the water.
Enzyme cleaners work best in warm water rather than hot water. Do not combine two different types of chemical drain cleaners or it can create toxic fumes.
Follow the directions on the packaging for the optimal results.
Keep towels around to clean up the water that spills.
There are also are gas and electric powered commercial grade drain snakes that you can rent from the hardware store.
When you feel resistance, it means that you’ve reached the clog.