Hi Tessellate! Signal horn suggestion!
We have to open 4 bridges almost every time we head
out with a long and a short. we went through $15 air cans at least 4-5 per year.
Then I discovered this one "Seachoice Products Pump Blast Air Horn"!!!! we have used one, One, for over two years! the only reason i got a new one was I sat on it and broke it. so I bought two to have an extra, but dont think I will every need the extra.
We went through every single
rechargeable, pumpup, big can, little can, etc. I am telling ya, we tried everything. You dont have to take my word, you can try then all too.
like I said, I am on my second one and it is two years old and gets used at least 30 times per month. (four bridges, both ways, sometimes multiple honks).
I am going to start giving them as christmas
gifts now that I think about it.
s/v Kittiwake (46.5 ft clearance)