Aquarion Water Company is starting a project today to replace equipment at its Sandy Hook pump station.  The work is being done at Bancroft Road and Alpine Drive.  The utility says residents should expect minor traffic disruptions, including detours.  Most of the work is being done off the roadway, on Aquarion property.  Construction hours are 7am to 5pm.  The construction project could last for at least a year.  No disruption in water service is expected.  Aquarion officials say the project is meant to ensure reliable water pressure in the distribution system serving customers in the Sandy Hook area.