Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
Hi, thanks before I forget. With the added attention and a surprisingly-lower temp overnight (sigh), I reinspected the thru-hull in the galley. Some warm water and then some upward gentle poking from outside released a clod of impacted soil and water flowed freely. The galley sink and the ice box drain as advertised (whilst on a trailer, level). Both galley and v-berth are, what I believe original, 1986 plastic 90deg ball valves; so, not bronze but not gates either. For now, I'm comfortable with them and I'll look into some StayAfloat and/or keeping a plug and tool near each. I think I'll drop an audible H2O contact alarm near each too for when we anchor overnight.
You assume correctly. Mud daubers apparently or at least that is the evidence I witnessed falling out. The odd part is that this boat was in IA where they are present (not here) but it's been in the water for a season, then it came up here and sat in the water for the remaining season. I think these daubers' homes are so well-constructed, they're waterproof or at least highly-resistant. Cell phone manufacturers, are you paying attention???
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.