I bought a used dry suit (High Tide uncompressed neoprene) last summer and have been diving it since. When I bought the suit, I decided I would just use fleece undergarments that I already owned -- basically heavy fleece pants and a lighter weight fleece sweater along with poly-pro underwear. I have maybe 50 dives on it and while I have generally been warm, the dives have always been "interesting" on the ascent. I have continuously felt the suit wasn't venting well and it wasn't.
Finally I decided this was stupid and went looking for an undergarment that would work under this suit. I ended up with a Mobby's lightweight fleece from the LDS and got a very good price (it had been there for a while because, in the PNW, who wants a Lightweight undergarment).
MAN what a difference the right equipment makes!
Pretty clearly the valve wasn't the culprit on the venting issue -- my lightweight top was! (I think it was a combination of air trapping and getting sucked into the value.) But, all of a sudden I realized I could trust the suit -- that meant more air into it -- that meant more warmth and better bouyancy control -- not to mention less total weight!
Note to self -- DO NOT GET CHEAP on the basic tools of Scuba!
Finally I decided this was stupid and went looking for an undergarment that would work under this suit. I ended up with a Mobby's lightweight fleece from the LDS and got a very good price (it had been there for a while because, in the PNW, who wants a Lightweight undergarment).
MAN what a difference the right equipment makes!
Pretty clearly the valve wasn't the culprit on the venting issue -- my lightweight top was! (I think it was a combination of air trapping and getting sucked into the value.) But, all of a sudden I realized I could trust the suit -- that meant more air into it -- that meant more warmth and better bouyancy control -- not to mention less total weight!
Note to self -- DO NOT GET CHEAP on the basic tools of Scuba!