In first grade, my class made a list of things that our school could improve on. One of the things on the list was to increase the water pressure in the drinking fountains because it was very poor and made it hard to drink from. Recently, I noticed that the drinking fountain at my church had begun to lack in pressure although it had used to work just fine. This raised two puzzling questions to me: Why does the water pressure in a drinking fountain sometimes drop over time? And: how would a mechanic/technition go about fixing this?
To clarify, in both instances the problem was consistent and not caused by another event like running sprinklers that "siphened" the water supply/pressure.
Best Answer
Old pipes get rusted or otherwise clogged by different stuff, such as salts. This will increase the friction of the water flow, resulting in a reduced pressure. The longer the pipes the larger the effect. I do not see any other solutions than to change the clogged pipes, assuming first that you can find which one are the clogged ones (iron pipes instead of copper pipes are usually the problem). My suggestion, replace them with plastic pipes with shark bite unions (sold in Home depot) that do not require soldering. Ir can be a fun school project for any age above about 10.