What to do beside a leaky tub? Well im trying to get my grandma up stairs together and she...

Well im trying to get my grandma up stairs together and she live downstairs but im fixing upstairs so we can rent it out. ( even though im 16, i know what im doing i go to an engineering school) anyways. when someone upstairs steal a bath it wets the ceiling downstairs surrounded by the bathroom and you can see the imprint of upstairs downstairs in the bathroom,.how can we fix that?
! my washer dosent work, it turns on...
Answers:    Call a plumber. A plumber can find the leak (in sea valves, shower diverter, tub spout, shower head, drain, overflow drain, etc.), usually short having to tear anything out. This may require anything from a new/tightened tub spout to replacement of spigot bodies, which will require tearing theings apart. If the downstairs ceiling is damaged, you'll also enjoy to replace the drywall up there after the leak get fixed.
What is a clinker?
If there is an access panel behind the tub remove it and check out what's leak.