your drain has a restriction in line and needs to be snaked
Partial blockage. Snake the drain.
what would be needed to drain a washing machine up from a basement? We have power and water, as the water heater is in the basement, but the drains are about five feet up.
Because the washing machine drains down the same main drain and it's suction as it goes by is trying to suck the water out of the under sink U trap.
The drain is getting plugged and the toilet is lower than the washing machine drain so it is easier for the water to come up in the toilet than to go straight out the drain. Put some drain cleaner down the drain where the washing machine drains and that may solve the problem.
You can drain it directly into a drain pipe. Just make sure the the top of the drain pipe is even with the top of the washing machine. If not, the water from the washing machine will drain all of the time. There is no valve in the machine to stop the water from draining. The washing machine drains using a pump motor.
This is most likely caused by a lack of venting on either your washing machine drain or sink. The gurgling noise you hear is actually air getting drawn through the water in the sinks trap as the washing machine water drains past the sink drain. Both the sink and washing machine should be checked for venting issues by a licensed plumber.
It might be plumbed wrong -- or either your sewer is stoping up --
The washing machine works by filling with water and rotating. The operator has to put in soap, bleach and softener. The washer agitates, then spins, then fills with water, then rinses by agitating, then drains again by spinning.
make sure your drain hose is not covering the whole circumference of your drain pipe or you wont get good ventalation. Option 2 vent pipe in wall could be slightly plugged.
Yes you could, but it's usually not allowed by plumbing codes. Another point: Sometimes in Britain the outlet from a washing machine is joined to the under sink waste. I lived in a house with this arrangement once, and every time the washing machine was on you got bad smells from the drains, so I wouldn't recommend it.