Why is my washing machine backing up into my bathtub?
Emma Horne
Published Apr 06, 2026
Why is my washing machine backing up into my bathtub?
Washing machine: An unexpected sign of a sewer drain clog can happen when you run the washing machine. If the water draining out of the washing machine causes the toilet to overflow or backs up into the tub or shower, it’s a good sign the sewer drain is clogged.
Can a washing machine drain into a floor drain?
Can You Drain Washer Into Floor Drain? Now, if your floor drain connects to the main sewer system, then you can connect the washer to the floor drain. But you should keep in mind that the washing machine produces a tremendous amount of water that pumps out at 2 to 3 times faster than an ordinary garden hose.
What are floor drains connected to?
Keep in mind that floor drains are usually connected to your main sewer line. Therefore, an overflow or surcharge from your public sewer can also send waste water flowing back to your house.
Why does my washing machine drain into the floor?
Does Washing Machine Drain Hose Need Elevated? The washing machine drain hose needs to be elevated at least 30″ to 3′ from the base of the washer for it to function properly. Without having the drain hose located high enough, gravity will take over and the water filling the washing machine will run out of the hose and into the floor drain.
Where is the drain hose on a washing machine?
This hose is normally located near the bottom of the machine, and it is generally black. If you follow the hose, it should either lead to a laundry sink, standpipe, floor drain or directly into a PVC pipe. Using a pair of pliers, pinch the clip that is holding the drain hose to the washing machine.
What should I do if my washing machine drain clogs?
If the drain does clog, the water should fill up in the laundry sink before it overflows from the standpipe. Regularly snake your drain – Depending on how frequently you use your washing machine, try to snake your drains every few months, or when you start to notice water draining much slower.
What can I do about my washing machine drain line backing up?
A. Most of the drainage problems espoused here could be simply resolved by eliminating the usage of tub-type washers and employing front loaders. The latter use 1/3 the water of a top load machine, and using less of anything is a good thing these days. One-third in, one-third out.
Why does my washing machine back up into the tub?
Clogs in the house’s plumbing allow water to back up into the tub’s drain. Your washing machine’s drain water feeds down a drain pipe, like all of the other plumbing fixtures in your house. The drain water normally should never enter the house again, either through the washing machine’s drain or another drain.
Does Washing Machine Drain Hose Need Elevated? The washing machine drain hose needs to be elevated at least 30″ to 3′ from the base of the washer for it to function properly. Without having the drain hose located high enough, gravity will take over and the water filling the washing machine will run out of the hose and into the floor drain.
This hose is normally located near the bottom of the machine, and it is generally black. If you follow the hose, it should either lead to a laundry sink, standpipe, floor drain or directly into a PVC pipe. Using a pair of pliers, pinch the clip that is holding the drain hose to the washing machine.
What to do when washing machine water comes up in bathtub?
If you see water or debris in the cleanout, a major clog has formed in the drain pipe. If you have a power auger, feed it into the cleanout to snake the sewer drain line and remove the clog. If you still can’t determine the cause of the washing machine’s water backing up into the bathtub’s drain, call a plumber for professional help.
Clogging happens especially frequently when a washing machine causes the water backup. Water from a washing machine has a lot of lint and other debris mixed in with the water that can build up on the inside of the non-return valve.
Why is there no water coming out of my washing machine?
There are also small mesh filters inside where the water hoses are attached to the washing machine. It could also be that the hose is kinked, which would prevent water from passing through, or damaged. If the hose is just kinked, simply straighten the hoses, and try the washing machine again to check that it fills properly.
What to do if your washer won’t turn on?
Unplug the washer and slide it out from the wall to leave space to access the water valves. Locate the 2 water valves (one is for hot water and one is for cold water). If both water valves are open (hot and cold) then there is a problem in the washer or the water supply hoses.
What to do if your washing machine is not filling up?
If the filters are clean, you’ll need to check the water inlet valve and the water volume selector switch to ensure it is set properly and that the buttons on the control panel are fully depressed. If the water only flows and fills very slowly and both the hoses and the filters are fine, the problem will be in your house’s plumbing.
Why does my washing machine keep filling the tub?
When there is enough water in the tub, unplug the washer. If the tub keeps filling, you have a mechanical problem with the water inlet valve and it needs to be replaced. Meanwhile, turn off the faucet to the household water supply so the washer doesn’t cause a flood. If the tub stops filling when you unplug the washer, it is an electrical problem.
Why is there no water coming out of my washer?
If there is anything clogging the screen or blocking the connection, remove it and reinstall the hoses and test washer. Some other tips and suggestions… On most washers, if water flow is going to the machine but the machine will not fill with water, you probably have a bad water valve on the machine itself.
What to do when your washing machine won’t turn on?
Pull off the two wires on the water inlet valve’s terminals, and unscrew the mounting screw to remove the valve. Squeeze the hose clamp on the inlet valve, and slide the hose off the valve. Clean up water with a towel. Place the end of the hose on a new water inlet valve, and move the hose clamp to secure it.
Where does the water go in a washing machine?
The washer pump forces water from the bottom of the machine into the drain hose. The drain hose loops to the top of the machine, and then down to the drain, enabling the tub to fill. When the water reaches the bend in the hose, it goes out of the drain.