Air conditioning repair. I arrive to find two of three secondary drain pans, filled with water. The three units has a 3/4” drain line that empties out into a 1 inch drain line to exit the home. I flushed out all three drain lines as well as clear the water from the secondary drain pans from two of the units. I also found that unit one refrigerant is contaminated as the pressures bounce up and down, as well as the sub cooling, goes up and down. System will need to be decontaminated and recharged back up with 8 pounds of 410a refrigerant.