Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean a septic tank [title] Find your tank. [step] Start from the sewer pipe in the lower level of your house, if possible. Follow the direction it takes as it exits the house.

Ending1: Your tank may be out there and buried. Locating the tank now saves time and money later regardless if you or an inspector clean the tank. Ending2: [title] Clean around the base and under the tank. [step] As you're cleaning keep your water hose running. Ending3: [title] Deep cycle your filter, if applicable. [step] Use a small amount of water to come out of the filter and into your tank. Ending4: [title] Turn on the water supply to your tank. [step] Most sewage systems have an automatic emergency hose that shuts the water supply under the tank.

Answer format: ending1/ending2/ending3/ending4