Shower Scalds: The dreaded shower scald is simply cold water drawn from flushing the toilet. You can however minimize the temperature so its less shocking on your shower experience. If you turn the water valve on each tank off and then back it up one quarter to one half to slow down the flush rate. Or you can just warn whoever happens to be taking the shower.
Continuous Toilet Run: Your toilet will choose to run continuously when the flapper valve doesnt close all the way. You can fix this by cleaning around the valve to ensure nothing is keeping it open.
Partial Flushing: The partial flush can be pretty frustrating. This is usually caused when the flapper cap doesnt lift enough. You can always unhook the chain and reattach it with a shorter length.