USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
1-888-HAY-INDL (1-888-429-4635)
ISHCP3000FC Rev A 11/30/16
Pg. 16 of 16
www.haywardflowcontrol.com
Hayward Flow Control
Low Flow – Generally:
1.
Clogged or restricted strainer or suction line. Clean pump strainer basket and confirm no other restriction exists in
suction line.
2.
Undersized piping. Correct the piping size.
3.
Plugged or restricted discharge line. Remove restriction from discharge line.
4.
Air leak in suction (bubbles issuing from return fittings). Re-tighten the suction and discharge connections using
PTFE tape. Inspect other plumbing connections, and tighten as required.
5.
Plugged, restricted, or damaged impeller. Replace the impeller including a new seal assembly.
Noisy Pump:
1.
Air leak in suction piping, cavitation caused by restricted or undersized suction line or leak at any joint, low water
level in system, and unrestricted discharge return lines. Correct the suction condition or throttle return lines, if
practical.
2.
Vibration due to improper mounting, etc. Mount the pump on a level surface and secure the pump to the equipment
pad.
3.
Foreign matter in the pump housing. Loose stones/debris hitting the impeller could be the cause. Clean the pump
housing.
4.
Motor bearings can become noisy from normal wear, rust, overheating or concentration of chemicals. If the motor
bearing seal is damaged from leaks, water can seep into bearing washing out the grease and could cause the motor
bearing to whine. Replace the motor and any seal leaks should be repaired at once by replacing the shaft seal.
5.
Place pump closer to water level.
