Low Pressure

[Kevin Coleman]

I just bought a 3 flat(triplex for the non Chicagoan's) and I am hacking it. I live in the top unit, the bottom two are rented.  One of my tenants saw me today and said that their kitchen faucet water pressure was low.  I went in and checked it out and yes, it is low.  The bathroom sink, shower and outside waterhose all appear to have adequate pressure.  Any suggestions before I call a plumber.