mike_s
Contributor
What agency requires an H valve for cavern? NACD/NSS-cds require 1 primary and 1 safety per team, 1 primary and 1 backup per diver, and other than that complete recreational gear if my memory serves correctly.
I guess I thought NSS did.... (but I'm not cavern certified though... FYI)
from the requirements listed on Vortex's page.
Vortex Spring SCUBA Training
Cavern can be taken independently in 2 days or as a double class with Intro to Cave in four days. Cavern or Cavern/Intro can be taken any days of the week. Requirements include an Advanced Open Water Certification, a tank with H or Y valve, 3 lights, 1st and 2nd stage w/ 7' hose, primary reel, safety reel, and a minimum of 250 ft. The books used are NSS Cavern Workbook ($49.95) and NSS Cavern Manual ($19.95). Please call for class schedule and pricing.