I am in the SLOW process of getting All the parts together to build a few WTC for my needs. First I plan on using the Air bladder type of design, use the air from the WTC to inflate a bladder to displace the water then have the air return to the WTC to dive the sub.
From everything I read and heard, the shaft seals, subtech line of them, use an O-ring But in the WTC air bladder system, the Vacuum created had those seals leak. I heard/read that there was a fix to that, a different seal was installed in place of the basic O-ring, I think it was an X ring ? something like that in a cross section cut, might even be called " cup seals" ??
Could someone please tell me what the exact size of the seals are and where I can find them? I have heard that McMaster Carr is a Good Source, any exact part numbers would be Greatly Appreciated! Also the air bladder used, does it have to be Two lines to the bag OR can a single line to the bag be o.k? I have Several Hulls waiting for WTC to be built and I would like to get started.
I guess I need a List of All basic mechanical parts that go into a WTC Air Bladder system and the best source for them and part numbers please.
Its a Long request list and I Thank You for Your Time / Help that you give me.