Re: [PSUBS-MAILIST] Newbee to psubs...

[VBra676539@aol.com]

Morning all,

Typically, diver lock-out subs use a trim system capable of carrying enough 
water to compensate for both divers in the chamber. This puts the sub solidly 
on the bottom when one is out working, and allows the second to egress 
without delay in case of a problem. This saves hauling around Carsten's 100 
kg. anchor. Most commercial DLOs and the JSLs at Harbor Branch, have deck 
plates secured and sealed to a framework, using the lower portion of the 
chamber as the tank. Plumbing is arranged so that slight changes in cabin 
pressure control the volume of water. Very simple.

Best Regards,
Vance