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Hull pressurizing.

6 Posts
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(@dyoung87)
Posts: 2
Newby
Topic starter
 

I just re-furbished a Supercat 17. I sealed everything up very well, but I noticed when I pulled the drain plug after sailing, alot of pressure had built up. Seems like damage could take place if left to build further. Best place to vent? Or is a valve available?
Thanks in advance!

 
Posted : June 13, 2022 3:17 am
SC19
 SC19
(@SC19)
Posts: 49
Lubber
 

My SC17 has a tiny, maybe 1/8" hole in the very top of both transoms. I never knew what is was there for but perhaps it's a vent.

 
Posted : June 13, 2022 8:56 am
MN3
 MN3
(@MN3)
Posts: 7090
One Star Admiral
 

i had the same thing on my 5.5. deck lid would occasionally "pop" like a soda top

i drilled a VERY small hole in one of my deck lid - prob solved - min drilling, no way a lot of water was getting in, even if upside down and epoxy will fill that hole if ever needed

MN3

 
Posted : June 13, 2022 9:25 am
John Schwartz
(@JohnES)
Posts: 797
Chief
 

SC19 wrote: My SC17 has a tiny, maybe 1/8" hole in the very top of both transoms. I never knew what is was there for but perhaps it's a vent.

Same thing with the Classic Prindles and was told they are vent holes to keep the hulls from exploding. Was recommended to me to store the boat with the deck lids lose and the drain plugs in. I asked why the drain plugs in, and it may be an urban legend, but it seems the bees like those small openings for nesting.

 
Posted : June 14, 2022 2:17 am
MN3
 MN3
(@MN3)
Posts: 7090
One Star Admiral
 

... I asked why the drain plugs in, and it may be an urban legend, but it seems the bees like those small openings for nesting.

Not legend, truth! I find wasp nests inside my hulls often. I now use scraps of door screen mesh and push in a few inches of it in my drain plug holes. I can still drop a cotton wick out of the hole and plug it with screen door mesh and it will drain, wick, and keep out the critters. I made venting decklids years ago with some pvc pipe and screen door mesh, i made a u shape tube so it was rain proof vent with 2" pvc parts

MN3

 
Posted : June 14, 2022 3:31 am
(@waiex191)
Posts: 359
Mate
 

I keep my boats in a hangar. No critters.

 
Posted : June 14, 2022 4:36 am