How I Build My Twinset (Corrected)

I save divers so just very quickly I got this quick note this is actually a reload of a previous video about my made on my twin set up one of my pointers actually noticed that I have my regulators set up the wrong way round which was completely true is very accurate so as I was tour is best to sort of own up to your mistakes and then sort of correct them so that's what I'm doing here most of the video is very much the same except I have changed around the section on the regulator's to the correct format so yeah here it is hi guys welcome to safe diving so in today's video I'm gonna be taking a closer look at my twin sets so when I first started diving and then I started sort of branching out I kind of saw twin sets around and I always thought they were cool when I was a kid I always swore that I've died with two cylinders instead of one because why do you only die pick one if you can add to that you've got twice as much and that kind of childish logic still kind of fits with modern day technical diving a bit of redundancy goes a long long way so diving with two cylinders gives you plenty of redundancy I just have just so much gas on my back and I just find they're a lot safer but trying to get into it they were a little bit confusing and I couldn't really find any information about it at the time so I thought I'd make this this video if you're thinking about sort of moving on to twins basically this is how you assemble them onto your life BCD and harness yeah I just thought you'd make your life a little bit easier maybe you understand things a little bit more and then you might sort of think about moving into diving into twins if you had a closer look at someone set so yeah let's take a closer look at one come in set [Music] okay so the obvious thing obvious first thing is the tanks themselves so these are a pair of Steel 12 litre 2 3 2 bar cylinders and and yet these are my twin so I went for twin twelves because they're just they just kind of feel right from it you can get you can't win anything out really I used to dive on twin 7 liters which are about the same height but they're a lot skinnier they're a lot lighter as well but there were 300 far 7s so that I could get pretty much the same volume of gas a little bit different but what I found is is that the sevens they were nice because they were nice and small they were pretty easy to pick up when you sat down on like the rib of the boat the bottom of the cylinders touch the bottom as well so you haven't got the weights actually on your shoulders you can take that weight off but trying to get a true 300 bar air fill is quite tricky even if I did it myself by the time you hit the water you're scraping about 260 bar so I didn't really see that added benefit so I opted for four twin twelves that way if I'm diving with someone on just a single 12 I know I have twice as much gas as though they're a decent length again like the other sevens they kind of rest so so if I do need to take a weight off my shoulders after the water I can literally sit down and they'll be safe taking that weight off the shoulders and yet just just plenty of gas water for long long dive so breaking this down the tags themselves these are exactly the same as single tanks the only thing that differs is the is the valves at the top and these two bands so starting up at the top the the valves that are put in there pretty much the same as your room as your standard tank valve the only thing that changes is that these are mirror images one another you have a left and a right handed valve and they're connected in the middle by what cervical manifold so so that means that I can switch either of these tanks on and and that will deliver guests among regulators but then when this valve is open it means that I'm breathing from both tanks together so so as I go down the pressure sort of drops in both of them but in an emergency if something goes wrong with one of them I can close that valve this one's actually open in a way which is unusual I can close that valve and then just breathe from one side so that way I can switch that off I can still be breathing from that so I have an independent air source doesn't mean that you need to separate first stages but that's a good thing again you've got more redundancy but but yet having a manifold with your twin set just means that you don't have to switch between the two constantly you're actually breathing from both of them together and if you need to you can isolate it emergency now the twinning bands so these go as high up as they can on the shoulder the first one goes quite high and then what these basically do is they hold these two cylinders parallel so they don't twist because these are very very heavy if one of the moves and the other one doesn't you're gonna damage these and these are very very important to keep nice and safe if they Bend there's gonna be a very loud noise and very expensive bill to put it that way so you have these these twinning bands and these are bolted on these hold them very very securely and stop them from moving around so they move as one unit they also act as a way of attaching your tanks onto your back plate and harness so that it's really really rigid and you don't need like ham bands to do it now the second one is lowered down and this one is always 11 inches away from the top one and and that basically comes from the back plates the way that we've designed that place throughout the years the story that I heard I don't know if it's true or not but running with it is that back plates used to be made out of old road signs and they were 13 inches long and then they just went hey why don't we make it 1 inch in from each end and that's kind of the universal size that will go with so yet every tank band is fitted about 11 inches apart from one another I don't know if that's true there's a story that I've heard faster when I tell my students so yeah so that's it of them that I don't have boots on my tanks that's just extra clutter and and it means that it's covering up the bottom so that I can't see rustle damage when they're exposed yes they do get scuffed up but at least I can see it and if it looks dangerous then I can take care of it whereas with the boots it just holds water against the bottom of it and yes or the rust can get them underneath me and I will pain and it's not a good thing but but yeah so those are my cylinders let's start building up my complete twin set with my BCD and everything next up I have my P weight so this is a little extra trim weight this weighs about five kilograms because despite how heavy these are these are like 20-something kilos each I still need some LED to actually help me get down with my dry suit my under suit so an extra five kilos over let's sort of helps me and this is a basically a big block of the lid it's coated so it isn't leeching out into the water and that's quite bad for the environment so I always try to get to sort of coated in it if you can and the way it's shaped it's shaped a bit like a wedge so it just sits in here and fits in between my tanks so it sits in there and it's you can see we've got these rails and these are sort of holding or the bolts are holding that weight in the position and yeah it's out of the way it's nice and close to my body as well the further away you put that legs the more it wants to kind of twist your around but with it sit like this it's nice and closer to nice and the trim and I know it's just some wasted space so you know why not fit some LED there [Music] my wing goes on next this is the buoyancy part of my harness system this is a mono sex of what they call it was like a is a 20 pound or is a 20 kilo 44 pound wing so plenty of lift the way you can tell this is for for twin sets is that it's nice and wide we got a wide section in the middle and then the lobes around I dive with a donut size shape wing you can get sort of horseshoe sized ones or shaped ones which have a cutout in the middle but they're a bit old-fashioned nowadays donuts allow plenty of firms of the air movement all the way around and I basically went for this one made for the external and internal properties let's be on the outside you have this external shell and this is protecting the bladder on the inside and abrasions but on the inside as well the bladder itself is pretty tough so yeah I think I ended up to the going for this one but there are plenty of people ones I've actually got my eye on a new wing as we speak I just got to wait for it to to be released but but yeah this one's fine it's a it definitely does the job and you'll notice down the center we have these these sort of grommet holes and these are funny you know 11 inches apart from one another so when so they're gonna line up with the underneath so when you're building this sit on the dive site tank first and then the key weight and then you line up these grommets on to the to the bolt holes and now all we need to do is put a back plate on top of that screw that all down clamp it together and you're all ready rock and roll so that's that's my bladder let's take a look at my back plate in the harness okay and then you fit my back plate on so my back plate is a stainless steel back plate this is about 3mm thick so steel is great because it's strong and it adds a little bit of weight as you can see this one is actually a skeletonized one so it's a little bit lighter but if you need to the extra trim weight that's some way where you can add some weight to your BCD I've already lined it up on the district also these are which is apart again and to fix it all together a pair of wing nuts and they just find a screw on now the first time I saw a wing nuts on a back plate I feel like how did that not just do into your back and sort of be really uncomfortable but trust me they they don't one thing is is that this a lot of this you can use this as buoyancy obviously so that's kind of lifting you up so that kind of hangs you away from it and - you've got your dry sand you've got your under sue and everything underneath it that's extra padding so it never reaches you and three it sits in a real sort of divots so so it's quite hard for your back to actually reach that at all good half-inch of depth just in that sort of spineless section there so they are they don't touch so all my back plate plenty of attachment points if I want to sort of attach any loops on that if I whatever reason some divers they like to attach some sort of bungees there for a DSMB so in castaway you can also attach sort of cam bands on the other side if you want to dive with a small sort of drysuit tank you can just have a small like 1 litre pony just so that in there is out of the way but that's not independent air source so you don't have to waste your and the actual breathing gas on inflating your dry suit so that's what these kind of Holdings around they were for my harness is just a single piece of two inch webbing this is dir style it kind of starts as a as a waist bands comes around because my shoulder straps goes underneath through the back plate because my other shoulder strap and then comes the rest of mine there's the waist belt very strong very reliable the the downside is is that it's very inflexible there's no sort of adjustment in that strap so what I did is I've fitted a Adi Harper loop so this is a very simple little device that's and just kind of slots through your room your back plate and then you've thread you will your left all you cancel to get to so you can thread both of your shoulder straps through that and then that way what you can do is at the beginning of the diet you can really linking it off get into it and then when you're doing yourself up and pull that down and that little tightens that strap and then the waistband become to the right length so that's a way of not breaking the loop that's making out a little bit adjustable I've got some neoprene sleeves over the top that just helps prevent that from robbing my dry suit and damaging that over my shoulders prevent and d-ring so I can click things off onto that underneath that I've got a whole bunch of these inner tube sections and that's for your torches or any accessory that you're not going to be using but you take down with you stops it from flapping around this loop is for my inflator so that would go through there next that just stops that from drifting away and so I always know exactly where it is over my shoulder pretty much exactly the same on my right hand shoulder this is my set of primary d-ring on to another section of that sensitive bungee just in case I'm a bit tied up down to the waist bands again very reminiscent of a waist belt sort of weight belt quick release but what I have done is I modified the end of that just make it a little bit easier for myself a completely flat edge it's kind of tricky to sort of thread through sometimes so I just cut that corner off melted it down made sure it's some nice and neat so so that doesn't fray and that's been much much easier to sort of get through even okay now I don't have a d-ring on my right hand side on my waist but I do on my left so this is for my my SPG my pressure gage just a big straight during off and that and then I can click whatever I want from stages to that crotch strap very essential so to hold you in position stops it from sort of riding up and sort of going anywhere much softer material because it's done between your legs but d-ring on the front that's for a DV if I I'm not using our tend to tuck it away and then just about muck but I have this other one which is a pre bent d-ring just to clip things off onto that's handy for spools just to keep them out of the way but that's it that's basically how you build up the different layers of areas of a back plate and harness what I'm gonna do now is I'm gonna get my side mount regulators not my society like my twin set regulators and show you the configuration and what hose goes where on my on my regulator's when I'm diving twin sets [Music] okay so now on to the regulator's so this is the bit that I had to refill because someone noticed a mistake and yeah it was a very good spot so yeah basically what I've done is I was filming back-to-back and I change from my single host setup to my twin hose set up without swapping the hoses over correctly and I effectively had my primary on my left hand valve and the reason why it's important not to us for having that configuration is that if you're swimming in an overhead environment that that valve wheel if that's enrolls on something it's gonna roll into a closed position and never wants you over your primary to be in that closed position and for emergencies so yes it comes off with a white hand post but I'll get into the specifics later on the right hand post because there because the screw threads are opposite if you're in an overhead environment and you do sort of brush against the ceiling then it's just gonna open that valve so there's no nothing wrong with that so getting into specifics on my right hand cylinder that comes over my right hand shoulder I've one high-pressure hose so this is a short little set a six inch 15 centimeter hose this is actually wrapped in a section of neoprene just to give it a bit of extra room protection and that leads to a wireless head transmitter that flicks to my dive computer so the reason why I put it on a short little hose is that some of this is really expensive a very clever piece of kit and if that's attached Dorothy onto the first stage if that gets knocked or bumps then it's very easy to damage it whereas when it's on a short sort of six inch long hose it's got that kind of movements it can get to the best around it and it's not going to get damaged as far as the low pressure hoses my short one that comes straight out of the first stage this at least you might inflate it for my BCD so that I can control my buoyancy and yet that's just a independent sort of buoyancy control and then as far as Airways I have my long sort of two point one meter long hose and this routes down the sides sort of right-hand side underneath the actual waistband it gets tucked underneath with my little knife on on that side it then comes up my front around behind my neck and then it comes to this second stage so this has a snap attached to it to sew it off I usually have fitted a 90 degree elbow just so that when it's fitted around behind my neck and then goes into my mouth that closures roots in a bit neater so I don't have this big and loop kind of around the side of my neck and then that just goes into my primary second stage so it's on a really really long hose just so that I can donate in an emergency and if I do need to donate they've got plenty of space to move around sort themselves out in even if it'll swim single-file so that's my right hand post onto my left hand so high pressure comes down my left hand side and that gets clicked off onto that waist d-ring on the waistband and then this is just a standard rubber high pressure hoes and that leads to a grass with a glass face pressure gauge very simple very easy to see no boots so it doesn't hide any corrosion or anything and that's clipped off onto a large bolt snap so that I can sort of flip that off really quick and easily low pressure I've got two the first one is an inflator so this goes to my my dry suit again that routes down my left-hand side much like my primary regulator does on the on the right but but this leads to a quick disconnect low pressure plate of hose that connects to the chest valve on my dry suit again I can use this for buoyancy but is primarily forward to sort of adding dry suit to really squeeze enter annular those plasma thermal insulation but but y'all can use that as a buoyancy advice I need two regulators my alternates my set up October as such but this is the one that I'm switching to in a in an emergency this comes straight out of my left hand post this time and then on a short middle hose to a second stage with a necklace around it so that just sit right in front of my chest so if I need to donate that long hose primary I can just switch to that one really quickly and easily and that's it that's the the regulator setup so it's nice and safe you've got redundancy so you've got something that you can breathe from on both you've got something that you can control your buoyancy so that if you ever need to switch one valve off and isolate a little you can still breathe you can still control their buoyancy on either side you just have to change a okay all right so this is my twin set of course let me know down in the comments below if you're just thinking about moving on to twins if you've got any questions at all just pop them down and I'll make sure that I answer them either by sort of writing to you or actually if there are enough questions about twin sets I'll do a completely separate sort of Cuban a style video just answering your questions and try and sort of put you at ease on whether you're thinking about moving on to twins but yeah let me know DUI singles or do you dive twins are you thinking more about side melt I have dive side mail but for sort of local diving I prefer twins I just like how solid they are and in cold water dealing with all those little bolt snaps can be a little a bit of a pain so so I just tend to like my twins I know is exactly sort of how they work and how they sit but yeah let me know down in the comments below what you're thinking about moving on to whether this helped you out with your decision or whether to move two twins or whether this just seems too much for you you just want to stick with singles pop it down in the the comments below and we'll have a good discussion as ever if you want me to record anything else let me know in the comments below if you enjoyed this don't forget to hit that like button and the subscribe as well because that's really gonna help me out thank you for watching make sure you're staying safe during this lockdown and keeping your family nice fit and healthy make sure to look after your heart because that's one of the main reasons for deliver incidents during recent years so this lockdown isn't going to be doing us any good so yeah make sure you're looking after yourself don't forget to check out all of my other videos thank you for watching and of course safe diving okay so thank you very much for watching this video on my channel I upload videos every single week all about how to become a better scuba diver now I've been working in and around the dye industry for a very long time now and I have a lot of a device that I can help you out with so if you need any help or advice with anything to do with scuba diving just let me know in the comments below and subscribe to my channel because I'll probably make a video all about it to help you out so you can click here to check out one of my latest round 2 videos to upgrade your equipment and your diving and click here to check out one of my scuba diving advice videos thank you for watching and of course take diving

Channel: Safe Diving

Views: 4,212

Rating: 4.9424462 out of 5

Keywords: scuba, diving, advice, dive, equipment, gear, technical, twins, double

Id: 4oMnllNZTro

Length: 24min 17sec (1457 seconds)

Published: Mon May 25 2020