Any suggestions on entrance to Cow Upstream with backmount. Found gold line having problem at 2nd restriction. Found 10 sec video in library but the diver was sidemount. Any help is appreciated.
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Any suggestions on entrance to Cow Upstream with backmount. Found gold line having problem at 2nd restriction. Found 10 sec video in library but the diver was sidemount. Any help is appreciated.
What exactly are you asking for and what was the problem with the line.
Looking for tips on entry at Cow Upstream 2nd restriction with Back mount. What body position was used to enter. Angled or flat on your stomach or tanks down. 3 man dive team could not find the trick to get past 2nd restriction right after the start of the gold line. No problems with gold line. Only saw 10 feet of it as could not make it past second restricition.Quote:
Originally Posted by DeepSea
If any of the team is large statured and wearing fat doubles, forget about going backmount. Sidemount is really the only easy and safe way to dive Cow.
It may be worthwhile to go with someone who has experience there,and can help you. I have found most people have more difficulty with the restrictions when exiting. A valid point is made if you have anybody in your group that is of large stature,then entrance/exit will be very difficult,if not dangerous.
if you get through the 2nd restriction, coming back out is another story, if you don't line yourself up just right you wont get through, you have to make sure your wings has no air and if you have a drysuit beacuase of the restriction your suit may inflate on you, I have pulled out a few divers being stuck in that restriction over the years, because the slope is a lot different coming out then going in, if you are getting stuck going in you will have more of a problem on the exit, take Kelly's advice go with someone who has been there.
I'm not exactly sure if it is second restriction, i always thought that the second one is the drop off in NotMyFault. What you call a second is just a duck-under. Make it team of 2. Let the larger diver go first. Lay down flat and dig a little (to the inside like a bulldozer) if needed, never exhale 100%. Try one hand behind another in front, or both in front. It should work, well at least you will have a fun behind the first diver :-) Also there is a backmount bypass of the duck-under, ask Bill Rennaker for guidelines.Quote:
Originally Posted by tflaris
you have two major restrictions, The first one in open water, then you drop down a shaft, then to the left is a 2nd restriction about 10 feet in, not my fault is around 700 feet in.
I finnaly got through using 80's instead of 95's. That one inch of additional clearance was enough. The "nomad" is on my christmas list this year though...Ken
Just purchased one and very excited to get the setup as close to perfect as possible and get some pratice on it and have a second run at it.Quote:
Originally Posted by DogDiver
thanks for the input.
having done cow in both backmount and sidemount, i have to say sidemount is MUCH more enjoyable, mostly because you can go all the different routes that lead you to the line from the sink :-D In backmount you have to know where you are going to get past the entrance, and even then its pretty tight, but doable... thats why the system is still so nice, is that it really only gets traffic from sidemounters!
Has anyone been in there with ccr (Meg)? I have not been back there since switching over, and was wondering how difficult entering/exiting would be. That is unless there is some rule about ccr divers not being allowed in there :smt064
No, but you DO have to be a member of the NSS-CDS. Otherwise you're tresspassing. :twisted:
I have seen both the Optima and Inspiration go upstream, I don’t thing the Meg would be a problem.
Understood (now that they actually own it), but that wasn't my question.Quote:
Originally Posted by Slüdge
I've seen the meg upstream...Quote:
Originally Posted by billyf
Mike ... I have done lots of upstream dives in Cow using my Inspiration. The case on my Inspiration is 7" high. A standard Meg scrubber Canister is 7" in diameter. I haven't had a problem getting through the primary upstream restrictions in my double 120s (7.25"), which are wider. I must admit that I like diving Cow in sidemount better than in a CCR or in doubles. :DQuote:
Originally Posted by barney00
I find it helps if I push my bailout bottles in front of me as I go through the 2nd upstream restriction.
Pictures:
Pushing AL 80 bailout bottle through the 2nd upstream restriction:
http://cavediver.net/photopost/showp...to=832&cat=504
Going through 2nd upstream restriction in Cow (halfway through):
http://cavediver.net/photopost/showphoto.php?photo=857
Going through 2nd upstream restriction in Cow (almost through):
http://cavediver.net/photopost/showphoto.php?photo=827
Swimming upstream with bailout bottles:
http://cavediver.net/photopost/showp...to=834&cat=504
Upstream Cow in an Inspiration:
http://cavediver.net/photopost/showp...to=856&cat=504
Swimming Upstream Cow:
http://cavediver.net/photopost/showp...to=836&cat=504
The size of the rebreather/tanks isn't as important as the person's somatotype-if somebody is ectomorphic (thin) then there will be less of a height profile,than if somebody is endo or mesomorphic (large body size).
A thin person with backmount tanks will probably fit versus a large person with sidemount 46s.
Have you seen RB80 :-) ?Quote:
Originally Posted by Tegg
Correct! I weigh approximately 160 pounds and my back mount tanks are only 7.25” in diameter. I can get through the primary upstream restrictions in Cow without digging. I slide through the 2nd restriction on my belly.Quote:
Originally Posted by Kelly Jessop
Diving sidemount in Cow offers more passages to explore including additional entrances, bypasses and exits. It also helps if you need to dislodge a stuck diver in Cow on New Years Eve. :D
Thanks for the information. I was more interested in difficulties with sliding through due to potential issues with CLs pushing through the sand. Obviously not really a concern with OC doubles.
I also anticipated pushing bailout bottles thru as well.
Thanks again.
Try not to slide your counterlungs (min. loop volume) in the sand. Maintain your distance from the rock above your scrubber canister. It's going to be a tight fit through the 2nd restriction!Quote:
Originally Posted by barney00
You could try to mount your scrubber canister and tanks in a sidemount configuration. Leon might be able to help you with this.
it may be easier to avoid that sand restriction all together and use the "bypass" option.... It's been a long time since backmount for me... but I think i used to do that path in backmount pretty easily...Quote:
Originally Posted by Chip
I've only done the 2nd Cow upstream restriction bypass in sidemount. I guess it's worth a try (Mike), but I always take the primary restriction in CCR and I haven't had a problem. I'm not sure how either path will work for someone else on a CCR. As Kelly and others have pointed out, it depends upon the whole package (body structure and dive gear).Quote:
Originally Posted by Tegg
You laugh, but I was in Cow, when someone tried to get in with an Argon bottle. They got stuck big time :-)Quote:
Originally Posted by ARY
I had to wait for a sidemount group to come in and go around to the back, and remove the bottle, so he could get out.
The RB80 has 2 big tanks, so it is way to wide to get past the restriction.
Andre'Quote:
Originally Posted by ARY
Did you get an RB80 :roll:
So far I can't even qualify for basic standards not to mention to think about it :wink:Quote:
Originally Posted by billyf
But i write RB40 on my new housing made off sewer pipe would it be a violation? I can justify it as Russian Built [from schedule] 40 .
I'm truly sorry, for the offtopic. Just another of my useless posts.
I was 230 lbs when I dove in Cow and I got through with my Inspiration with out much of a problem. My PO2 controller and dive computer packed it in on that dive and was in a bit of a hurry too get out. Needless to say it was very stressful going back through the second restriction with a malfunctioning rebeather but that's another story.
Just go around.
I have been up stream on my meg, no problems, I have a low profile back plate, my buddy with his optima had more trouble getting in than I did.Quote:
Originally Posted by barney00
Thanks. I have heard from a couple other Meg divers and it doesn't sound like an issue. Just curious. I will just have to remember to tuck my secondary in a safe spot so its face doesn't get scratched all to hell -- not that it isn't already bashed up....Quote:
Originally Posted by Caver95