Outside faucets have low water pressure?

Low water pressue is caused by debris in the line, depending on the type of pipe, ie. galvanized produces buildup which restricts flow. Foul smell is caused by food particles in your disposal. This can be easily corrected by pouring bleach down your drain, also check to make sure trap is not dry.

Ans 2 - That's two different problems. You don't say if you're on a city system or a well. If a well then you likely have your own septic tank too. If it's a city system the pressure can be increased at the PRV ( a valve that is always at the point where city water enters the house.) -If on a well, pressure can always be adjusted at the pressure tank. -But be careful, if pressure has reduced recently then you need to find out why first and fix the problem, (there can be many problems and we need far more detail for a proper diagnosis. Also if on your own septic field it's NOT a good idea to pour bleach down any drain - it kills the microbes in your septic system ! A full sink of very hot water will accomplish the same thing.