Showing posts with label non-return valve. Show all posts
Showing posts with label non-return valve. Show all posts

Monday, October 20, 2014

Death rubber harvesting from a SL-17B diver



A Kirby Morgan SuperLite SL-17B helmet

The photo: A Kirby Morgan SuperLite-17B fiberglass diving helmet. It’s the one both Adolph and I use for surface supplied diving and it weights 29 lbs out of the water. Under water the three weights, port. Starboard and rear, come factory adjusted to balance the helmet and provide neutral buoyancy.  Even so I like wearing a beavertail jacket with it for shoulder padding as before entering the water you have to put on the yoke/neck dam assembly and then wait while a tender helps with attaching the helmet and its heavy.

Surface supplied diving: I can have a maximum of four surface supplied divers in my 64 ft deep pool at one time and Adolph can have a maximum of eight in his 216 ft deep training facility. With that many hoses it can get a bit crowded and the divers have to watch they don’t get their umbilicals tangled.

For some reason Adolph has recently had his trainees (all women) wear Kirby Morgan SL-17B helmets for a lot of their dive-sex training rather than the usual SCUBA tank, reg and mask gear. There are some advantages to training in surface supplied helmets the main one I think being there are no bulky tanks on the diver’s back, just an emergency gas supple (EGS) pony bottle and associated reg in case the surface supply is interrupted and also the defog/free flow valve that puts cool dry air against the port window. However, I think that’s offset by the need for the diver to wear a safety harness so s/he can be pulled to the surface as the long heavy umbilical with air hose comm. link and  supporting cable is far too heavy to allow a diver in trouble to get to the surface on his or her own unless s/he has a remotely controlled lift and is able to operate it so it requires dive tenders.

Given Adolph’s recent increased interest in dive-sex while wearing SL-17B helmets – perhaps because he is being asked to train women for dive-sex in surface fed helmets - I’ve been having my divemaster train Kassi and her partner(s) in that style dive gear which takes some custom prep for each diver to ensure the neck dam fits well and is worn correctly otherwise there can be serious problems such as what recently happened to a lovely blonde Aryan escort trainee that Tanaquil had sent him for deep-water dive-sex training.   

Neck dam leak: She was wearing a latex over-the-head skirted hood to protect her hair (like a lot of us do) that had to be stretched over the head to put it on. That’s because even with a correctly sized neck dam a back-zip hood would cause it to leak along the zipper where the neck dam sealed against the wearer’s neck. Her EGS cylinder valve was turned off as was the EGS valve on her helmet and she was wearing her beavertail jacket incorrectly - over the hood skirt rather than under it so what seems to have happened is the neck dam did not seal properly because of the seams and zipper irregularities in the neck of the wetsuit jacket. Perhaps that wouldn’t have been a problem by itself, but she hadn’t opened the valve on her EGS pony bottle and when there was a surface supple failure she couldn’t reach the valve to turn it on.

At that point the one-way (non-return) valve failed and with no pressure in the hose drained her helmet of air. If the neck dam hadn’t leaked she may have been killed by the vacuum (squeeze) in her helmet. But the vacuum in the helmet sucked water up through the neck irregularities - seams and zipper track - of the beavertail against which the neck dam was sealing rather than against the smooth hood. The inexperienced diver being unable to reach the valve on her EGS supply was left to drown when her helmet filled with water. Adolph and the drowned girl were operating at the 100 ft level on the safety net, but w/o tenders so Adolph watched her drown while getting off inside her, not that there was anything he could have done when everything went wrong.

I harvest a SL-17B death rubber: When Tanaquil’s trainee drowned Adolph called me to retrieve her body. He knew I had fitted her with a latex Reflexions flat spring diaphragm (an 80mm just my size) for upper reproductive tract flood protection and he knew I would want to harvest her diaphragm since he had been fucking her when she drowned which made her diaphragm a ‘death rubber’. Returning readers may recall I wear death rubber diaphragms because they give me access to all the previous owner’s experiences through the portion of her Chi that remains in the device she was wearing for sexual protection when she died. When I found her on the net at 100 feet he hadn’t covered her in any way.

The beavertail of her jacket was still tucked up on her back under the weight belt and her legs were spread so I had no problem in inserting two fingers, hooking the rim and pulling out her diaphragm which was slippery with Adolph’s liquefied semen. I slipped my new death rubber into a mesh bag on my equipment belt then fastened her beavertail with its twist latches so she was presentable before attaching her harness to a lift cable and winching her out of the pool.    

When we removed her helmet we found the neck clamp hadn’t been forced shut, but as I mentioned above the surface of the wetsuit didn’t provide the good seal that sealing against the latex hood would have, thus allowing water to fill the vacuum in her helmet when she lost surface supply pressure.

Afterward: Tanaquil was really upset at losing such a promising escort for whom she had great plans.  The body was cremated and her ashes were sent back to Munich where Tanaquil keeps the ashes of other girls w/o families she has lost due to accidents while in her employ. To minimize the likelihood of accidents when Kassi goes to dive her SL-17B with Adolph I’m sending along my divemaster as her tender.

Forcing Kassi’s period, an update: Returning readers may recall that on Tuesday Oct 7 she took her first 5mg Norethindrone tablet. She continued for nine more days stopping on Oct 16th when I was CD27. That caused her to spot on the 17th and start bleeding (her new CD1) on Saturday the 18th when we all were CD1. Rescheduling a period doesn’t always work so well and we have yet to see if she will stay synched with the rest of us, but we are off to a good start

Sunday, November 22, 2009

Taking Jacques in a DESCO FFM


A model in a DESCO free flow FFM

Jacques at 10 meters: I had my first true dive-sex encounter with Jacques in the pit last night. I had been showing him the basics of dive-sex in much shallower training pools at my place or the casino whenever we had an hour or so open on our schedules. He is an experienced SCUBA diver having dived the Mediterranean and the Red Sea as well as the Caribbean, but he had never had real dive-sex. He’d just taken girls in hot tubs and while they clung to the edges of pools. He asked me to wear a surface fed DESCO FFM so I’ve been practicing diving a DESCO whenever I’ve had a few minutes in the shallowest water I can because I want to give myself as much quality bottom time with Jacques as I can w/o hitting my nitrogen loading limit.

A photo of a DESCO in use is at the top of this entry. No, that isn’t me. I have auburn hair like the model, but I have green eyes and I like to wear a hood while diving to keep my hair from tangling in the straps of the spider and my other equipment. I had been alerted – by Tanaquil who knows Jacques from when she provided him with escorts in Paris - that he likes girls to swim nude and is particularly fond of seeing them in surface supplied FFMs, especially a DESCO which he remembers from television when he was little. So I had a bit of time for the casino Divemaster to get one for me and had it customized to upgrade the face seal to give my high cheek bones the best possible fit. Diving a DESCO commercial free flow FFM it’s much simpler than diving a KMH-16 since there is no sequential dressing in the pieces, but I do usually wear a neoprene hood to keep from tangling my hair. With a free flow FFM a surface supply continually provides enough air for the diver to breathe. With this free flow model air is delivered through a non-return valve and an air-control valve, mounted on the right side of the brass mask frame. The air-control valve allows the diver to regulate the airflow as needed; quickly and easily. A single stage exhaust valve is mounted on the left side of the frame and the exhaust is vented directly up and back.

Other than the tug of the umbilical which like the KMH feeds from the right, I really like the DESCO because it is so small that there isn’t the inertia associated with movement of a KMH. I think it is also quieter with the adjustable free flow valve because there is no regulator on the mask to hiss loudly every time a breath is drawn through a demand valve, but there is a continuous low level hiss that I’ve found it easy to tune out. I love listening to my exhaust bubbles racing to the surface when I’m soloing, and to my partner’s DV and bubbles during an encounter. And, with no tank and harness my entire figure presents for my partner’s enjoyment. A plus for dive-sex is that a girl’s breasts present at their very best! Silicone implants are a bit heavier than water and if they are large enough may cause a bit of sag, but saline implants and breast tissue are neutral or slightly buoyant so they float and present naturally. Water is the perfect and most comfy bra!

Pressure equalization: Though we dived the pit our encounter was not nearly as deeply submerged as I had intended. Jacques had trouble equalizing the pressure in his ears and he couldn’t get below 10 meters w/o considerable pain. We even tried decongestants but they didn’t seem to help. We ended up with him penetrating me at a depth of 20 feet with me tethered by ankle leashes to buoys. It was lovely and he held me in ecstasy until I was quite limp. I was glad I didn’t have to grip the mouthpiece of a regulator between my teeth. I could just turn up the air flow and relax and watch him pleasure me before he finished by planting his seed against the silicone membrane of my gas guard as he rammed my cervix. I think no mouthpiece to grip between my teeth while having intense dive-sex is a huge plus! Really! It’s the first time I’ve had sustained orgasms while wearing a free flow mask and it’s so awesome! Jacques is such a gentle considerate lover and took his time giving me my pleasure first while he studied me nude except for the FFM - I wore no helmet and let my hair float free - and neutrally buoyant pool-pointes, and then while floating in the water almost horizontal with my legs spread while he thrust deep inside me. Afterward, after we showered and I washed my hair he combed and brushed the tangles out for me and I got so aroused at how gently and lovingly he groomed me. And then he took me again before we went to sleep.

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Powys , Wales, United Kingdom
I'm a classically trained dancer and SAB grad. A Dance Captain and go-to girl overseeing high-roller entertainment for a major casino/resort