Hose Protectors - Scuba Tech Tips: S06E09
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- Опубліковано 18 вер 2017
- Almost every regulator comes with hose protectors on the 1st stage to prevent hose bending. Alec explains why protectors on rubber hoses are important and why flex hoses do not need them.
**** Alec Peirce Scuba ****
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Your videos are awesome! So helpful! Thank you for taking the time!
Great information Mr. Peirce! Answered the question that I had! Thank you for all your tech tips, very nice to be able to get quick expert opinion, especially for a new diver like myself.
Never thought about it. I just assumed that any kind of hose got a protector. Starting to change to flex hoses. Thanks my friend. Montana Mike
Thank you for the video. I learned new things.
You are welcome!
Thanks- very informative on multiple levels
Thanks for watching Daniel.
Alec
Hi Alec, Thanks for the videos. I have had good luck with miflex hoses. Hoping you can get to dry suits at some point.
We're working on it John.
Thanks for watching.
Alec
Awesome
Hello mr. Pierce, thanks for the video. In the last days I was seeking for some information (for personal interest) about the validity of the practice of removing the hose protectors and I found this video. In particular, I personally would opt for removing them also on rubber hoses, both on reg hoses and manometer hose for following reason:
1) if here is a leak in the water you are not able to see where the gas comes from.
2) I never saw divers removing the protectors everytime they rinse the reg so the risk of oxidation of the metal hose connectors due to salt water residuals is very likely.
I am happy to read your opinion.
Many thanks, AC
My point is rubber hoses still need protection from bending a the joint. If they don't bend, less likely to leak.
Alec.
@@AlecPeirceScuba_SeaHunter Thank you for your opinion!
Alec. Thanks for the video. Looking for recommendations for hose protectors for the Mi Flex hoses. Your help is appreciated.
Personally, while I am generally a fan of hose protector, I don't put them on flex hoses. They are so flexible that the likelihood of them bending too sharply at the ferrule is unlikely. Plus they reduce some of the flexibility.
Simple - don't use them.
Alec
All the course's teach you only what you need to know like to your maximum allowed depth , i want to know more , what if i accidentally went down to 50 meters what will happen , how will i ascend ? Please make a video about this or even reference good books to read please .
Thank you a lot for this tech tips they have been awesome i just enjoy every last one of them. Thank you
I think there's some validity in the current trend to NOT give options for what we used to call "Extreme Exposure" dives - too deep or too long. Educators are concerned about setting goals or making suggestions. Humans are noteworthy among all animals for their competitive nature. Sometimes a suggestion, even as a limitation, is enough to wet the lips of an overly-competitive diver - "What will happen if I go to 300'?"
Current texts prepare a scuba diver for the dive profile that he will be encountering and that is safe.
They also include information about what a diver must do if he accidentally exceeds the depth or time limits.
In the 60's and 70's we were using the US Navy Dive Tables and they went to 190'.
They also had Extreme Exposure tables that went to 300'. They are easy to find on-line.
Deep dives are exciting - just like driving too fast in the rain!!
Solo deep dives can be very risky (surely you wouldn't drag a buddy along with you - that'd be like driving too fast in the rain with your kids in the car!)
Be safe.
Thanks for watching.
Alec
Thank you for the great and quick response , if may reference me to a good diving book or even make a video for it , for the people who wants to educate them self's more than PADI's or any agency's book
hi alec i was wondering if you could answer a question for me what are the advantages and disadvantages of a full face mask over a standard 2nd stage and keep up the good work
Full face mask were quite common even for recreational divers at one time. The advantages were touted as freeing up the mouth for more important things - talking, chewing gum, etc; keeping the faceplate clear because of the fresh air flowing over it; keeping very cold or dirty water away from your face and mouth. There may be others that I've forgotten.
The disadvantages always begin with expense. A full face will cost at least twice as much as a conventional second stage (realize that a full face reg uses the same first stage). Also a full face can be harder to clear of water and harder to equalize. It's difficult to build up pressure inside a full face mask so clearing and equalizing is difficult. You cannot easily remove and replace a full face mask underwater. It's not that easy on the surface! Cleaning and servicing a full face is a necessary and unavoidable disadvantage.
I'll see about doing a vid on this topic. It will be in my Vintage Scuba playlist.
Thanks for watching.
Alec
Good day mr peirce, first of all greetings from the Netherlands! Love your videos (ofcource with kevins help). I've got a question related to 2nd stages, normal vs nitrox ean32/36/40. Me and my wife want to to the enriched air course and seen that "normal" regs are nitrox compatible up to 40% but is it advisable to get a separate nitrox reg or doesn't it mater that much? Gonna visit the dive store here but I sometimes doubt their selling motives so I'd thought let's hear your thoughts on the subject. Thanks -John
If your regulator is fairly new and in good condition, it is perfectly fine to use it to 40%
Many divers believe (or are taught) that regulators must be prepared for oxygen use and they're right. But, you're not using if for oxygen. You're using it for enriched air. Big difference.
If your reg was going to be exposed to 100% oxygen (or anything higher than 40% for arguments sake), then you would need to have it cleaned, have the applicable parts changed to oxygen compatible and ensure it was serviced using clean tools, clean hands and proper lubricant. All in all an expensive procedure. After that you can ONLY use it for EANx or with Oxygen Compatible Air or it will require serving again.
I suspect that you'll be using 32%, the most common mixture, or maybe 36%. There's no real application for 40% among recreational divers.
I'd like to clarify what you meant by second stages. Technically the second stage is the part that goes in your mouth. The first stage mounts on the tank. When O2 cleaning is required, it's most important that the first stage be cleaned. That is where the gas is under high pressure and where particles, friction, impingement of other possible sources of heat would occur. Once the gas had been reduced to low pressure, there's little danger from the use of EANx at any level.
I can guarantee your LDS will insist you have the reg EANx serviced. That's how they stay in business. I did the same thing but I always gave the diver the option. You do NOT need O2 cleaning of the reg if the EANx is less than 40%.
Thanks for watching.
Alec
Alec Peirce Scuba I meant the entire reg ( 1st and 2nd, sorry for the confusion). Nevertheless thank you for the explanation and looking forward to your next video 👌
Hi Alec, I've read that boiling hose protectors makes them easier to install.. any tips?
I would use hot not boiling water with a little dish soap and they will slide off/on much easier.
I wish you had said a few words on how to put on and remove hose protectors, for the life of me it seems like I'm going to rip off the fittings on the end of a hose when pulling off a protector.
There is a tool to help pull protectors off but hot water and dish soap work ok too.
@@AlecPeirceScuba_SeaHunter Thanks...I'll give them a try.
Hi Alec, one concern I have with flex hoses (and I do use them!), Is their potential to kink enough to stop airflow. If you pinch them hard between your thumb and index you can actually stop airflow despite fully pressurising them (just tried this now!). Only situation I can see this happening while diving is during long hose donation if buddy ascends v high for whatever reason, and the hose is exiting downwards off, say, a DS4 reg on a twinset (like I use). Actually if you put some force to lift the hose upwards it can indeed kink sufficiently to stop airflow (have tried this myself out of the water). Do you think a hose protector in that specific situation may help reduce the chance of this sort of kinking?
I use flex hoses since they were first released and replaced with newer none recently. Never seen one that would cut off air LP or HP by hand pressure or pulling up. They do have a small hose protector at each end to reduce strain on the connection end but this new to me. Next time I have my regs out will test it on my setup.
@@AlecPeirceScuba_SeaHunter would recommend using a hose you are not planning on using again! It does take some force, but without being particularly muscular myself, I managed with little difficulty to kink to stop airflow. Indeed this is probably extremely unlikely to occur underwater, but still...made me think! Let me know how you get on!
Hey Alec, I'm part of a scuba Facebook page and the my flex hoses were a recent topic of conversation and concern. It was the old "my flex hoses are prone to fail and will never use them again". The # of people who had them fail, many said that even new hoses that seemed to fail in the first few dives, was remarkable.
Any thoughts on this. Would they be talking about some cheaper hoses or ebay specials? After how you describe them, and how much you like them I'd like to pick up some. I wonder if there is a brand or place I shouldn't get them from? I know you don't name the brands very often but I'd like to try them without wondering if they are going to fail. Thanks for your vids. As always I luv 'em!!
Hi Brad. Please see my reply to Jason for my thoughts on this issue.
I've had good success and feel very confident about Miflex hoses. They are the largest manufacturer and the choice of big brand name regulator manufacturers. They have every possible length, color and application ever needed and any decent scuba store has them or can get them.
I don't doubt that some stores will not sell them based on their personal beliefs and a lack of understanding of the technology involved. Go to another store. Remember, many dive stores refused to sell single hose regulators too - they'll kill ya'!
Take care.
Thanks for watching
Alec
@@AlecPeirceScuba_SeaHunter Hi,
I have been using flex hoses from Metalsub with no problems so far.
Alec, are you familiar with this company in terms of the flex hoses (I do know they made and still do good rubber hoses)?
BTW, I removed the protectors completely from each end of each hose (make it easier to pack and travel - the main reason i switch to the flex hoses in the first place)
Thanks a lot,
Daniel