1935 Balcombe and Powell reach chamber 7, Wookey Hole, in a series of dives in standard dress.
1936 October Sheppard passes Sump 1, Swildon's hole, using a home made dry suit fed by a football inflator pump
1936 November Balcombe adds an oxygen cylinder to his home made B.A. and becomes self contained. He passes Sump 2, Swildon's Hole
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Page Updated Saturday, 20 May, 2000 © Cave Diving Group
