Decompression
Diving
Commercial
sea urchin diving in California, in the early years was risky,
competitive, and one hell of a good time when it was not miserable
The urchins were plentiful at the shallower depths, so mostly divers
stayed within the dive time limits, that would keep them from having
to decompress at a slower rate than 60 feet a minute, which was
considered the universal standard for a safe ascent, and no
decompression required, while ascending to the surface.
Rule of
thumb for bottom time limits to stay in a “no decompression
profile. 60 ft for 60 minutes, 70 feet for 50 minutes, 80 ft for 40
minutes, and so on. These times were valid On the first dive of
the day, after
that each successive dive would allow less and less bottom time. The
formula to compute those times was taught in just about every basic
scuba class. There were fancy slide rule like contraptions, that
aided the diver to compute those times.
It is interesting to note that decompression
sickness first became a problem during the time of the construction
of the Brooklyn bridge. Workers began coming down with paralysis
pain and much of the symptoms associated with Decompression sickness.
Workers were located under the riverbed, after the construction
allowed air to be trapped for there use. However it was compressed
air at depth. The partial pressure of nitrogen in the air was
increased at depth and thus if the body was not allowed to dispose of
the increased nitrogen , bubbles of the nitrogen would form in the
body with devastating consequences as with deep sea divers.
By this time the urchin business was maturing to a
point where a decompression meter was available, for those who would
rather not have to do all that math. The model available for most
all divers was basically a gauge with a dial face and a needle that
rotated threw a graph measuring the bottom times and decompression
“hang off “ times required, if the no decompression times were
exceeded. Inside the gauge was a bag that filled up as nitrogen levels
were increased,as the needle reflected that.
This equipment was really targeting sport divers. It
was not meant for repetitive dives and said so right on the gauge It
did , however make commercial sea urchin divers a little more
comfortable .
As far as I utilized the added assurance of the
decompression meter, which by the way had to be re calibrated from
time to time, at almost half the cost of the meter new, it was just
an added safety feature that I would use in situations where I ran
into a hot spot at near the end of my bottom time limits. I would go
ahead and finish off filling my net bag and then slowly surface being
careful to remain underneath my bag as I swam back to the boat and
then maybe go hang off on the anchor line at ten feet as required for
a few minutes, or until I was out of the red , as the meter
indicated.
After I survived the sinking of the Fat City, I was
able to land a spot on the Dusky. Now the owner Tom Craiger was a no
nonsense very successful fisherman. He generally switched to the
fishery that was the most profitable at any given time...some of
those were also seasonal. In the summertime he would gear up for
Albacore, and the divers had to find a boat since urchins were a year
round fishery. He ran a tight ship, midnight to midnight to San
Nicolas Island about 60 miles due south of Channel Island harbor.
Only a 12 knot boat, she was 40 something ft well maintained. He was
in direct competition with Mike Milman on the Triggerfish. A
Highline Fisherman in his own right. Mike had invited Tom up from LA
and allowed him to duplicate his operation. Depart at midnight,
arrive at sunup
after coffee and breakfast was served to 3 divers.
This was so the surveyor could be suited up and ready to splash in
the water as soon as the boat settled in the kelp beds. It was a
crap shoot when to head home, because if we arrived behind more than
a couple boats, by the time we got unloaded, we would not arrive at
the island until almost noon. That would screw up the schedule for
the rest of the week and cut into Toms precious bottom line.
Along with this operation was the culture and the
attitude, cultivated by none other than Ron Rector, at the
encouragement of none other than Tom Craiger. Somehow they got it into
there greedy little heads that it would be perfectly profitable...I
mean safe to push those decompression meters beyond any reasonable
limits that they were not designed for.
First jump 90 minutes at 60 ft. Hang off 10 ft 20
minutes. Deck time barely over an hour. Second jump another 10 ft
hang off 25 minutes. An hour and a half deck time. Third jump 30
minute hang off at 10 ft. Hanging off the anchor line was miserable.
If you were not cold enough from the dive, hanging off and not active
would remind you of where you were. Cold Ass San Nicolas Island in
the middle of the winter.
I was not too keen on maintaining this routine, even
though I was making some real money. I went along to get along, not
yet experienced enough to object to Toms antics on deck, as he was so
impatient for us to get back in the water, it reminded me of a kid
about to erupt in a temper tantrum.
I had met Ron Rector once before about 5 years
previous. I was interested in the Sorcerer, that was for sale and I
maintained I was interested. The 30 ft Radon had a cabin that was a
pilot house for one. Interesting design. Lief the owner suggested
we make a trip and I could see for myself how the boat operated. The
morning of our voyage, a long haired kid,only a few years younger
than me showed up and I was introduced as the half owner of the
Sorcerer. OK no problem, Ron would not shut up the whole way out.
He was trying to impress me how good of a diver he was and that he
was also a cocaine dealer with customers that included some of the
Hollywood elite. I could care less, even if he was telling the
truth, which I had my doubts.
We got in really shallow to some wash rocks that
were just plugged with big heavy urchins. the swell was throwing me
around pretty good, but I did not care. I ended up with about a ton.
After all that bluster Ron did not even get in the water.
So as you might expect I was not really anticipating
having to witness Ron having his nose buried so far up Tom Craigers
ass
it made me sick. There combined knowledge and
experience insisted that , “fudging the meter would do no harm
since a safety factor error of 5% was built into those meters...blah
blah blah blah blah.
I mostly accepted my situation since I was making
some healthy bank, until one day on the way in, I started having some
pain in my knee. Oh I must have bumped it on a reef or against the
boat..I thought. Not to be, the pain would not go away and it was
getting worse. I knew I was bent. I was surprised because our last
jump was only in about 40 ft of water. I had so much nitrogen built
up in me, even a 40 ft dive put me over the edge I must of got a
little careless on my final ascent, anxious to get home.
I tried to sleep when I got home...No freakin way.
The throbbing deep down pain, would not stop. Finally I called my
brother who had made his way down here from Washington for a short
visit. He stayed a year, but he had a car. I knew the CB base in
Port Hueneme had a recompression chamber, because I did my discharge
physical there and I took note of it. The stories I had heard..the
next closest one was in Northridge, more than an hour away. My
brother drove me to the guard shack on the base entrance. At first
they were not going to let me in, since I was no longer active duty.
But Matt started screaming 'HES DYEING” That did the trick, I was
in.
When I approached the chamber there were 3 or 4 Navy
personal standing around getting coffeecup finger. I explained to
them, about the fourth day on the profile I was maintaining. They
did not hesitate. they pressurized the chamber to 120 ft and began
slowly to bring me up. I was kept company and fed oxygen every 20
minutes or so. They gave me all the water I could stand. Then
encouraged me to urinate as much as possible. Something about a good
indicator, After about 8 hours in that tiny chamber I was more than
ready to escape. They kept asking about my pain level. I finally
had to lie just to get the hell out of there.
I reported for duty aboard the Dusky the following
day. I ruefully continued the same routine, and even agreed with Tom
that it is probably the best thing for my injury, to carry on diving.
I believe a week or 2 went by. Tom decided to give one of his pep
talks. Like a football coach he would attempt to motivate us to do
well and have a “Bonanza season” This time though he encouraged
all of us to give input. He said he felt that it was important for
his crew to feel part of a team and having a say in the operation
would support that, and go a long way in creating the success he
expected to have. So each diver said a few words, Nothing earth
shattering, really just to humor Tom. I declined to give any input.
Inside I knew if I got started he may not like what I would say, so I
just kept silent. After he would not quit with the input thing, I
explained to him that , it could get ugly if I said anything.
Finally I relented....I dont think anyone has ever talked to him like
that before. ON his face was utter shock and surprise. He kept on
me so I finally agreed. I dressed him down and tore him up as only I
can do. I shamed him for his juvenile behavior, I was merciless in
my verbal attack. He finally asked me if I was finished. When I
said I was he immediately ordered me to remove all my gear off the
boat when we got in. I said I did not have my car and I could pick
up my gear later. He would have none of that....He would drive me
home, and he did in complete silence.
I probably should not have blamed him for, me
getting bent. I should have stood my ground when I was taking extra
deck time, so I would have more bottom time. He would just stomp
around the deck, and suggest he take a nap while waiting for me to
get in the water. As if that wait would be so long to justify a nap.
I survived the experience a little wiser and more
determined to not allow outside influence to determine the safety
protocols I practiced. The boat owner sure as hell would not pay for
my medical treatment.
A few years later I was having a few too many at the Beachcomber. A tiny little dive bar at the far end of Silver Strand Beach. I suddenly found myself being approached by hillbilly looking guy with long hair and a straggly beard. He asked me if I remembered him. I did not and then he informed me that spending 8 hours together in a tiny little re compression chamber should leave an indelible memory, as it did with him. I apologized and referred to his appearance being slightly different than when we first met. He then told me he had worked there for about 3 years and of all the divers they treated, I was the only one they KNEW beyond any doubt that I was bent. Most all the others was a precautionary treatment...just in case. I was rather pleased with myself, hearing that and I said my farewell as I headed out to the beach to check out the surf
A few years later I was having a few too many at the Beachcomber. A tiny little dive bar at the far end of Silver Strand Beach. I suddenly found myself being approached by hillbilly looking guy with long hair and a straggly beard. He asked me if I remembered him. I did not and then he informed me that spending 8 hours together in a tiny little re compression chamber should leave an indelible memory, as it did with him. I apologized and referred to his appearance being slightly different than when we first met. He then told me he had worked there for about 3 years and of all the divers they treated, I was the only one they KNEW beyond any doubt that I was bent. Most all the others was a precautionary treatment...just in case. I was rather pleased with myself, hearing that and I said my farewell as I headed out to the beach to check out the surf
As it was they came out with a state of the art dive computer that left little doubt of its accuracy and reliability. It ended the controversy surrounding decompression diving with the old Bendo matic. Funny thing is, the fleet did not adopt that decompression hang off routine, even with the new dive computers. I noted that a diver breaths more nitrogen off on deck than he does at 10 feet, So as far as I was concerned, it made no real sense to push the limits and endanger your life and health for not even that much more bottom time.
Later some boats went with Nitrox gas mixes...but thats another story