I try not to create new threads when I can remember that there is an existing one that is similar to a new comment...so I brought this one from the dead. I am having a SEVERE low water pressure problem in my entire house. We can only run one faucet at a time, if someone flushes the toilet, the faucet goes to a trickle. If someone is taking a shower, we cant do dishes, if the washing machine is running, we cant do anything, if you flush the toilet you have to wait for it to refill before brushing teeth, etc. Now, it hasnt always been like this, the problem has gotten gradually worse over time. My house is in the middle of Oshkosh, well not the middle, but in the city. The house is in really good shape (I think) but it is 125 years old. Any suggestions?