Do the waterproof shoulder and rainproof cap have to be installed together?
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Must the waterproof shoulder and rain cap in the process pipeline be installed together?
Hull penetration sleeves for pipes passing through the deck. . . http://bbs.hcbbs.com/thread-802968-1-1.html
Yes, it’s best to install them together, as this helps prevent water from seeping in from the ground and prevents water from flowing down the pipes.
I see; it’s actually a wall penetration sleeve. This serves a different purpose from a rain cover
Right, the rainproof cap prevents drops from falling from above, while the waterproof shoulder stops drops from coming in from the sides.