In the latter case the donor provides the family's name and address to the charity at the time the gift is made. Even if you don't make a gift, a note or card to the deceased's family expressing your thoughts of the deceased is a welcome gesture, especially if you weren't able to attend the funeral.
If the pedal is still mushy or slowly sinks under pressure, with the outlet ports blocked, the master cylinder is bad. With the ports plugged, if the brake pedal is very high and firm, the problem is not with the cylinder.
When the brake pedal retracts, the pistons allow fluid from the reservoir(s) to refill the chamber if needed. Electronic sensors within the master cylinder are used to monitor the level of the fluid in the reservoirs, and to alert the driver if a pressure imbalance develops between the two systems.