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You may need to drain a toilet to give the bowl or tank a thorough cleaning, and especially if you need to do repairs. Fortunately, you can drain a toilet in only a few minutes. All you need to do is shut off the water and flush the toilet to get it to drain. You can then work on or clean the toilet without worrying about excess water. To help you out, we spoke with professional plumber James Schuelke to get expert guidance on getting the water out the right way.
How to Drain a Toilet Bowl & Tank
- Shut the water off at the supply line.
- Flush the toilet to empty the water in the tank.
- Pour around 3 gallons (11 L) of water into the bowl to force flush it.
- Use a sponge, wet-vac, or turkey baster to remove any remaining water.
- If you’re disassembling the toilet, sponge-dry the inside of the tank.
Steps
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Drain the tank before draining the bowl. The bowl will not drain properly if you attempt to drain it before draining the tank. When draining a toilet, always start with the tank. Simply shut the water off using the valve at the supply line by twisting it counterclockwise all the way. Then, flush the toilet.
- Can’t find the supply line? James Schuelke explains that it’s almost always feeding out of the underside of the tank. Follow that pipe to the wall. The valve at the wall is your tank shutoff.
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Grab some towels for the small mess you make. This is one of those simple DIY jobs that’s going to have a little cleanup involved; no matter how careful you are, the process can be a little messy. Lay down a tarp or some old towels near the base of the toilet. This will soak up any water that spills out during the process.
- Throw some rubber gloves on, too. Getting toilet water on your hands is a little icky—even if the toilet is relatively clean.
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Pour 3 gallons (11 L) of water into the bowl. It may seem counterproductive, but pouring a few gallons of water from the sink or tub will force the water through the drain. Lift the lid of the toilet and slowly pour the water into the bowl, lifting the bucket as you pour. This will draw the water out of the bowl. [1] X Research source
- If pouring slowly doesn’t do the trick, quickly dump the remaining water in the bucket into the bowl, as sudden action can help the water drain.
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Remove the remaining water with a sponge, wet vac, or plunger. While pouring water into the bowl should draw out most of the water, there will still be some water pooled at the bottom of the bowl. Grab a wad of paper towels or a sponge. Press this on the bottom of the bowl to soak up any remaining water. [2] X Research source
- You can also plunge the water down the drain by using a traditional plunger.
- A turkey baster can also remove all of the water if you’re in a pinch.
- If you are 100% dedicated to not touching any water, use a garden hose to siphon the water into a bucket. Put your finger on the end of a hose, insert the other end into the bowl, and remove your thumb once the hose is over a bucket to drain it out.
EXPERT TIPProfessional PlumberJames Schuelke, along with his twin brother David, is the co-owner of the Twin Home Experts, a licensed plumbing, leak detection, and mold inspection company based in Los Angeles, California. James has over 32 years of home service and business plumbing experience and has expanded the Twin Home Experts to Phoenix, Arizona and the Pacific Northwest.Try using a wet vac instead. To drain a toilet tank, shut off the angle stop, or the valve that comes out of the wall below the toilet tank. Once that's shut off, flush the toilet to get the residual water out of the tank, then take a wet shop vac and extract anything that's left.
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Turn off the water supply to the toilet. Schuelke points out that you can find the supply line leading away from the tank and into the floor or wall. It's generally a small knob found on the wall or floor near the toilet. This shuts off the water supply when turned clockwise, allowing the toilet to drain.
- Be careful not to break the valve or the pipe if you’re in a really old house. Hold the base of the valve with one hand and turn it with the other.
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Remove the top of the tank. Carefully take the top off of the toilet tank and set it aside on a soft surface, like a towel, so it doesn’t break. This way, you can see the water as it drains to make sure it's draining completely.
- The water in the tank is 100% clean, so don’t feel gross if you get a little wet.
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Flush the toilet to drain all of the water. Schuelke says you just press down on the handle the same way you normally would. Flushing the toilet should cause the water in the tank to start to drain. If the water starts refilling, double-check the shutoff valve. Make sure you twisted it as far as you can to switch off the water supply.
- If the toilet knob will not shut off properly, try temporarily shutting off the water supply to your house.
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Hold down the valve until all the water has drained. Keep pressing down on the flush valve. Hold it down until all the water drains from the tank of your toilet.
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5Soak up any remaining water in the tank with a towel. There will be a very thin layer of water at the bottom of tank. If you do want the tank 100% empty, grab a big sponge or dry towel and blot all of the water up.
- You can skip this step if you’re replacing the entire toilet (the little bit of water left in the tank will evaporate over time). If you’re disassembling the toilet though, you’ll save a bit of cleanup time by soaking the water up.
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Warnings
- Never attempt to drain a toilet without cutting off the water supply. Your toilet will not drain properly if the water is still turned on and it can cause water to leak, causing a huge mess in your bathroom. [3] X Research sourceThanks
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Article Summary
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To drain a toilet tank, start by turning the small knob at the base of the toilet clockwise to shut off the water supply to the toilet. Next, carefully take the top off of the toilet tank and set it aside. Then, flush the toilet, which will cause the water in the tank to start to drain. Keep holding down the flush valve until the water drains completely from the tank of your toilet. For tips on draining the toilet bowl once the tank is drained, read on!
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