product photo
logo

Refit Guide

Do it yourself. Do it right.

Refit Guide is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

Lubricating Seacocks

Seacocks stiffen over time and will eventually seize up. Greasing them every year will ensure you can quickly close them to keep the water out when you absolutely need to.

This seacock lubrication tip from morganscloud.com makes it incredibly easy to grease all your seacocks in just a few minutes when your boat is hauled out of the water.


  1. Close all seacocks
  2. From the outside of the boat, go to each thru-hull and paint the exposed surface of the ball valve with grease.
  3. Open and close the seacocks multiple times, ensuring to turn them as far in each direction as possible.

A calcium-based grease is strongly recommended.

Materials

Seacocks should be completely dissembled and cleaned every 3 years or so, but keeping them greased every year is easy and will ensure they continue to move freely.


Do you think we got it wrong or are missing something? Let us know!
Curators
Avatar of Brandon Keepers Brandon Keepers
References
morganscloud.com
Seacock Lubrication Tip
practical-sailor.com
Keep Seacocks Working Smoothly
boatus.com
Seacock Maintenance
cncphotoalbum.com
Maintaining Bronze Seacocks
machinerylubrication.com
Choosing a Multi-purpose Grease

Subscribe

Get the latest how-tos and reviews delivered to your inbox.
You can opt out or contact us any time.