Check / Replace Raw Water Impeller

Parts / Tools

• Screwdriver
• Replacement impeller
• Impeller body seals

Impeller cover plate.

Method

• Turn off the raw water inlet sea cock.
• Unscrew the raw water impeller plate.
• Prise the impeller out gently with a flat-head screwdriver.
• Inspect the impeller. If there is any damage, replace.



Damaged impeller - needs replacing.

• Clean and replace the front plate using a new paper seal.



New impeller with vanes in correct orientation.

• Open the raw water inlet sea cock.