On Saturday, August 6, 2016 at 9:14:04 AM UTC-5, jimbust747 wrote:
replying to Grandpa, jimbust747 wrote:
Make sure fence is dry. Apply a patch of selotape over the knot hole on the
outside of the fence. Go inside the fence with skeleton gun with silicone
sealer in and gently pump some silicone into the hole until it's full. Wipe
over with scraper and leave for 24 hours now you can remove selotape all
done . Use brown silicone for a neater job.

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for full context, visit http://www.homeownershub.com/woodwor...ce-188244-.htm

Grampa has since "bit the big one" and gone to his Maker...note: the thread you're replying to is nearly 13 yrs old.