Well this is a strange item, eh? A day before my last trip, I topped off the tires, all were about 5-7 lbs low. Next morning, did a walk around before hitching up, left rear tire absolutely flat. Couldn't figure out how one day it was fine, never moved, next day it was flat.
So I filled it with air to pull the trailer away from the fence for a closer inspection. As I removed the air fitting I heard air, it was coming from the valve center -- stuck valve (big sigh of relief). Pulled it, found salt corrosion, replaced it, held fine.
Even though I have dust caps on all the valves, they are evidently not water tight. So I shot each with Boeshield T-9 and will add it to my regular maintenance list! This has never happened in all my years of boating.
So I filled it with air to pull the trailer away from the fence for a closer inspection. As I removed the air fitting I heard air, it was coming from the valve center -- stuck valve (big sigh of relief). Pulled it, found salt corrosion, replaced it, held fine.
Even though I have dust caps on all the valves, they are evidently not water tight. So I shot each with Boeshield T-9 and will add it to my regular maintenance list! This has never happened in all my years of boating.