To move air from your cylinder to your regulator’s second stage, a first stage uses either a piston system or a diaphragm system. Both can deliver excellent breathing performance; however, each has distinct advantages that are better suited to different diving situations. SCUBAPRO USA’s Technical Manager Rene’ Duprè explains.
http://www.scubapro.com/en-US/USA/regulators.aspx
Price: $82.24
Hypro D30 Diaphragm Kit 9910-Kit1724
Hypro Diaphragm Repair Kit 9910-KIT1724 Works on the Hypro D30, D30GRGI, and D30-AP-A Diaphragm Pumps Kit includes 2 x Desmopan Diaphragms (# 9910-620085), 1 x Accumulator Diaphragm (# 9910-550190), and 4 x O-Rings (# 9910-620030) (as of September 14, 2020 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Price: $2.99
Idiot's guide to inner peace: Belly Breathing
(as of September 14, 2020 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Price: $14.50
Motif Medical, Set of 2 Luna Diaphragms, Replacement Parts for Luna Breast Pump
The diaphragm is the round, plastic assembly that attaches to the top of the breast shield to allow for closed-system pumping. This assembly is affixed to the breast shield on one side and the tubing that goes to the motor of the pump on the other si... (as of September 14, 2020 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Price: $34.99
cool
Excellent instructor, gives seminars around the U.S. Must schedule!
What is considered “cold” for the purposes of a regulator? Or asked another way, at what temperature and below do you need to start looking at regulators with stated cold water performance?
Unbelievable professor. I highly recommend going to one of his seminars.
finally..
Let’s go diving!