First things first in order to keep the drain clean you should pour some of those enzymes based chemicals at least once a month.
Can you use drain cleaner in washing machine.
Remove the drainage hose from the washing machine and insert the snake down the drain pipe.
Drano is a liquid or gel clog remover depending on the product you choose that works to dissolves obstructions in drain pipes including those of washing machines.
Fill the empty washer with hot water as if you re doing a large load of laundry.
However the real issue may be the drain from the house to the sewer have roots in it or a breakage thus restrict.
Check and clean the filter monthly or weekly depending on how frequently you use the washing machine.
Even calling the plumber once or twice a year for maintenance isn t a bad idea.
The drain cleaner if used should be suitable for pvc drain piping.
Open the top of the machine and let it sit all bleach y and full for an hour.
If the problem of how to clean a clogged washing machine drain does not resolve even after using the cleaners then get ready to use some elbow grease.
In general these products can be very helpful for minor clogs but have limitations when it comes to unclogging a completely clogged pipe.
You could try that or use a snake to see if there is a blockage.
Get hold of a drain snake roll up your sleeves and get to work.
Sludge in washing machine drain hose soap buildup grease oils and other materials on items that go into the wash can lead to nasty smelly sludge in the washing machine drain hose.