I have a 1 year old house on a well that has good pressure in the master bath(which is right above where the well comes in and the pressure tank), but on the other side of the house (38') I have very low pressure. This is on the first floor. The second floor has good pressure. I have 3/4 inch thompson flow guard piping until it t's for the second floor, then it reduces to 1/2" piping for a 20' run. How can I increase pressure to my kitchen(where the low pressure is)?