Clan Donations
Everyone in the clan should be playing their part when it comes to donations. The only exception to this is war, where the required type/level of troop(s) should be donated. Outside of war, members should request for "Any" troop. This gives everyone an equal opportunity to donate.
It's also discouraged that high level troops are being requested outside of war as they should only ever be needed if you are practising an attack strategy. High level troop requests should not be used for farming. Requesting for troops such as dragons, pekkas, witches, golems and lava hounds is not advised outside of war.
Members who only come online for war, should aim to fill 2 to 4 donation requests between their attacks. This will help them keep a 50% donation ratio against the troops they have received. For example someone with a level 3 clan castle which has a 20 troop capacity will request for troops twice making a total of 40. If they fill 2 donation requests with dragons or balloons they would equal that number.
Ultimately everyone in the clan should at least have a fair donation ratio. A fair donation ratio is donating 50% of the troops you have received.
A poor donation ratio is when someone has donated less than 45% of the troops they have received. For example anyone who has donated less than 50 but has received over 150 will be kicked.
Members usually have until the end of a season (the monthly reset) to fix their donation ratio. However if someone receives an extreme amount of troops and has a poor donation ratio they will be kicked from the clan immediately.
If you have any questions or concerns about donation feel free to ask a Leader. It is better to make them aware of any issues you are having regarding donations than to be silent as this could strengthen your case when it comes to a clan clean up.