Get one from a hardware store and insert it into the downpipe.
How to snake drain from roof.
If the cross hairs are clean the tub stoppage is likely to be farther down the drain and you can snake the tub drain through the overflow.
If you are snaking out a tub feed the auger through the overflow drain not the drain in the floor of the tub.
It has a wire string that you can lower down a drain and a spool that spins it to dislodge clogs.
Depending on how deep or thick the clog is you might need to repeat this process several times.
Snakes are a handy tool to keep around your home at all times because they can unclog any drain you have.
Keep feeding the plumber s snake through until the clog disperses at the outlet pipe.
Feed it slowly down into the roof drain until the clog is removed.
A plumber s snake will be able to clear most of the clogs.
Put the auger end of the snake into the drain and feed the cable in while turning it.
Basic method drain snake water hose pipe brush sewer jetter blow bag hot water wet vacuum high power suction machine professional help.
You may need to remove the tub stopper to access the cross hairs.
Ask the maintenance man how to use a drain snake.
Use a standard drain snake with a 1 4 or 5 16 inch cable.
Ask the maintenance man how to use a drain snake.