Use a standard drain snake with a 1 4 or 5 16 inch cable.
How to snake drain from roof.
Ask the maintenance man how to use a drain snake.
Top 10 ways to unclog your roof drain.
Get one from a hardware store and insert it into the downpipe.
Put the auger end of the snake into the drain and feed the cable in while turning it.
Feed it slowly down into the roof drain until the clog is removed.
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.
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.
A plumber s snake will be able to clear most of the clogs.
You may need to remove the tub stopper to access the cross hairs.
Basic method drain snake water hose pipe brush sewer jetter blow bag hot water wet vacuum high power suction machine professional help.
Keep feeding the plumber s snake through until the clog disperses at the outlet pipe.
Ask the maintenance man how to use a drain snake.
Work slowly and keep twisting the handle on the snake as it works its way along the pipe.