According to our discussion via phone, JBE found diaphragm plates of P-0403 Sandpipers diaphragm pump were damaged for many times. After JBE checked with S30 instruction manual, it is recommended for suction pressure shall not be over 3.048 meters of liquid(0.29 bar), but suction pressure is approximately more than 1 bar as attachment. Is it possible that cause of damage come from over suction pressure?
If so, please you advise preventive action for this issue.