Port Orford is moving forward with plans to address major problems in its aging water system, as city officials race to overhaul the system before more of it fails. Officials say some equipment is obsolete, old distribution lines are leaking and the plant’s filtration system is no longer working as designed. Public Works Superintendent John Isadore said the malfunctioning filtration system requires excessive backwashing and costs the city more than $60,000 a year in wasted water, electricity, chemicals and overtime. “The plant’s running itself to death,” Isadore told the city council during a special meeting Wednesday. City officials estimate the filtration problems require about 3.3 million gallons of additional treated water each year for backwashing alone.