JBL sit down Enema Bag(s)

The fillings are not that huge with a JBL which is why it feels like not that much. 😁 😁 😁

In fact is the pressure from a bag hung at 4-5 feet is greater than can be developed from sitting on a JBL.

DO THE MATH.

A 250 pound person (I purposely picked a fat weight to demonstrate the point) spread over the size of the JBL bag which is maybe 125 square inches, is only about 2 psi using round numbers. You get 2.15 psi hanging a bag at 5 feet. Each foot of elevation gives 0.43 psi.

If you are a lean well built woman and weigh 125 pounds, you will only get 1 psi while sitting on the JBL bag. The JBL bag has a slightly different feeling but it is well over-rated.

FURTHERMORE, your effective weight/mass is even less than your weight because your feet are on the floor unless you balance yourself and lift your feet off the floor so more of your actual weight is borne by the JBL bag, so the pressure to fill your guts is actually even less, and EVEN FURTHERMORE, when you lie down and hang the bag the water goes more or less horizontyally in your colon thereby increasing the effective pressure, but while sitting on the bag, the effective pressure into your guts is even less because when sitting your level of your colon is higher than when you are lying down.

The JBL was kind of a fun novelty, but it's not great loss that it's gone.

The math and fluid dynamics proves it.

Susie,

Several comments:

From personal experience I know that fills from a JBL can be very large. On several sittings, I have taken virtually all the water in an original, about 5 qts; I can only take half that with a convention syringe and retention nozzle.

Your pressure calculations are essentially correct. But there is a difference between a pressure source and a flow source. A pressure source applies constant pressure, irrespective of the flow rate. A flow source apply a constant flow rate, independent of the back pressure. A Dotolo type colon hydrotherapy machine is the latter type. The water flows at a constant, adjustable, rate no matter how much the client cramps. If you crimp the inflow tube, the pressure gage instantly pegs and you have to buy another one for about $100. The full municipal water supply pressure is available at your anal aperture. (40 to >100 PSI)

Some Prime Pacific models have both pressure and flow modes. Open colonic systems are most all approximate constant pressure (Libbe and Angel of Water, for example)

A fountain syringe, hung low (say under two feet, is approximately a pressure source... the water pressure is pretty constant against your anus. If you cramp, the water can flow backwards into the bag. In this mode the water flow can be controlled by the elevation of the bag, but the shutoff is really only on/off.

If a fountain syringe is hung high, the flow control is by the throttling effect of the shutoff. Here is where a roller style clamp is preferred. However, the water flow rate is constant and won't stop if the receiver cramps.

This is the basis for instructions to hang the bag a foot or two above the person's anus. A low hanging bag enema ids far less crampy than one with the bag hung high.

The Klystra bags were made without much understanding IMO. The original ones were well designed and made and many are still functional after almost 100 years.

I'm well aware you can modify the mechanical properties of silicones with additives. The same applies to natural rubber. In fact, most vintage bags were red or black because of cheaply available pigments. White 1920s syringes are rare and are rock hard today, because of the additives.

The original JBL was, in essence, a sewn bag, made of non stretch cloth, rubberized to be waterproof. Other brands, such as US Rubber and Rexall, I think, were made in a similar fashion. The tensile stress was supported by the cloth fibers, not the rubber.

If you can source properly designed and made ones, I'm a customer. But the Klystra I paid over $100 for was a complete loss, I've no wish to repeat.

A bonus question:

Why is it important to purge the air from an enema hose, before nozzle insertion?

I do agree with Susie's calculations and assessment, but I still thoroughly enjoy the occasional use I get out of my original red rubber JBL I acquired from Tyler many years ago. It has a standard valve and upright-pointing nozzle with opening at the tip so my water stream flows straight north while I'm sitting on it. It holds about 5.5-6 quarts full. A couple of times I've measured it before and after an enema, and though usually I probably get in about 2-3 quarts, once or twice I persisted sitting/pushing on it until nearly empty and got in almost 5 quarts. I just enjoy it because the sensations are different than my usually (thoroughly enjoyed) trusty bag and balloon nozzle. To me it's a novel pleasant sensation being upright and somewhat submissively unable to move because of being impaled on a thick vertical nozzle up inside my bottom. And the water flowing in and filling me vertically is uniquely pleasant and submissive and stimulating/arousing. I could certainly live without it but it's a real pleasure to have it around and sometimes enjoy its unique sensations. Also good position for a masturbated orgasm during filling.

The first time I ever saw a Domme nurse, I was told to dress in my rubber wetsuit and sneakers and she gave me two large bag enemas. For the third one she blindfolded me and sat me down impaling me on a completely full rubber JBL. It was my first JBL ride and I was instantly hooked.

Eric

@ericmacson

If you bought the "JBL" from Tyler, it was not an original, unless a used item.

If the nozzle had one hole, it was not an original JBL. Period.

Tyrell, the maker of the original JBL Cascade was out of business by about 1960.

https://en.wikipedia.org/wiki/Charles_Alfred_Tyrrell

The original, as I used for my avatar, had a nozzle with 6 rows of tiny holes. That was a design feature touted in their literature. In fact, the original JBL came with a hose and nozzle and adapter so it could be used as a fountain syringe. The rectal nozzle for the hose also had the 6 rows of tiny holes.

Thanks, Sean, I seem to have misspoken. No false advertising intended. My red rubber bag obtained from Tyler probably in the '80's-90's actually says Klystra on it in black ink. I have no idea where she got it from but that's what she was advertising and selling on her website back then. It still works but the rubber is clearly deteriorating so I don't know how much longer it will hold water and function.

Eric

No problem on the Klystra bag.

I think Klystra was in Hawaii and was in the business of knocking off rare enema equipment. Many years ago, I won an item on eBay and received an email from him, asking to buy it from me. I was willing to lend it to him to reproduce, but not sell it outright. It was fairly rare, but don't recall the specific item.

I think Klystra may have had connections in Asia, or perhaps India, for the contract manufacture of the items and he probably had lots of hundreds made per production run. It is quite possible that Tyler, after Beth left, became essentially an enema gear on-line retailer, buying lots from suppliers in quantity and reselling them retail at a markup.

I'm certain Tyler did this with the Asian glass piston syringes, called Kanchou, made in sizes from about 20ml to 1000 ml, with integral glass nozzle. Such glass syringes are now available in quantities of one on a big Asian trading site but are quite expensive at about $75 for a 250ml syringe. As I recall, Tyler was selling them in the range of $200 back 15-20 years ago.

I don't recall exactly, but think mine, definitely bought from the Tyler website, probably back in the late '90's-early '00's, ran about $125-150. She had a lot of equipment for sale back then, including my original latex DBC catheters which are no longer useful. The "JBL" is nearing its last legs.

Eric

I think Klystra was in Hawaii and was in the business of knocking off rare enema equipment.

It is quite possible that Tyler, after Beth left, became essentially an enema gear on-line retailer, buying lots from suppliers in quantity and reselling them retail at a markup.

The business was actually run by "Ron Tyler", not his ex wife "Beth". He made the movies, did professional photo finishing for members of the "adult entertainment" industry and people who preferred their private photos be private, and sold enema equipment online. He and the late owner of Klystra would go in together on having things for enema enthusiasts produced. One ongoing problem was that frequently people would want something, then when it was finally available were nowhere to be found to actually buy the items, frequently resulting in both higher prices and both companies still sucking a loss.

The JBL copies sold by both companies were made as one batch, by hand. After Ron passed away I think the last few of these were still available, but once gone, there were to be no more of them.

Doc

I wonder of this site is legit: http://ns2.customwebdesigners.com/enemaproducts.htm. I had a sit-on bag years ago, but it started to leak. It's tempting to get another, but a 30 day warranty is much too short.

I sincerely doubt this is a legit site.

There have been other klystra fake sites over the last few years that just want your money and have no merchandise to sell.

I sincerely doubt this is a legit site.

My concern, as well. I suspect that they may have cloned the original Klystra site, while it existed. In fact, the Contact Us link takes you to the defunct Klystra.com.

Maybe Bob at SiliconeNozzles.com could create a sit-on style bag. I would love a sit-on bag where I could use the SNCMAX3 as the nozzle! Sounds incredibly filling and having thought of it I now need to take some fills with my beautiful blue SNCMAX3.

I’m pretty sure I’ve seen this site before, and it’s been around for many years. It’s certainly not ‘legit’ in the sense of having merchandise to sell, but I don’t think it’s a deliberate scam either. I just went through the motions of ordering something and clicked on ‘Checkout now’. That’s as far as I got: the link just times out. The ‘Home’ and ‘Contact us’ links point to the original klystra.com, which autoredirects to a ‘for sale’ notice. The url clearly indicates it’s made by a web designer, probably employed by Klystra to design their site when they had one. Created for testing purposes, it’s been left up through some inadvertence and is found by Google’s web crawlers.

But there’s no scam here that I can see, since there’s no way anyone can take your money.

Klystra’s old JBL bags possess some sort of magical attraction which keeps people looking for them, searching for the long-dead Klystra, and discovering and rediscovering this developer’s site, which looks alive but is as dead as Klystra itself. The bags were in fact not a very good product: I got one myself and still have it, but leaks around the nozzle soon made it unusable.

The site goes to :

view-source:http://ns2.customwebdesigners.com/enemaproducts.htm

The domain Klystra.com is for sale, I believe it is owned by godaddy

I believe the web page was left for advertising of the webdesigner's products

Did you try calling their phone number? Let us know what you find - the hoseman1

I believe the web page was left for advertising of the webdesigner's products

Did you try calling their phone number? Let us know what you find - the hoseman1

There’s nothing that suggests to me the site is meant to advertise the web designer. If that were the intention, it would be made very clear and there would be prominent links to the designer. There are none. — I think the site’s just been forgotten.

I'm getting closer to designing an enema bag/nozzle that would not be a replica but would be functional equivalent to a JBL bag.

The two issues are the bag itself, quite a fabrication project, kind of like building a rubber life raft using rubber, tape, and glue. The biggest problem is the screw-in plug assembly. I've found a source of fairly large hot water bottles that may do the trick.

Machining the nozzle and valve assembly would take the most time. I could design one from scratch, but if it's possible to not re-invent the wheel, would help. The material would be delrin. It would contain a valve that is reachable while sitting, as the JBL. I would have removable nozzles, that way different styles could be created.

What I'm after are ideas for dimensions. Drawings would be good. If anyone out there can provide measurements of an existing JBL bag's nozzle/valve assembly, that would save some time. I've brought this idea up before but am getting closer to a product. I just want to see if I can build just one, and if it works, release the plans. I do not plan on getting into the manufacturing business, I'd probably be accused of making medical devices without a license.

the hoseman1

I'm getting closer to designing an enema bag/nozzle that would not be a replica but would be functional equivalent to a JBL bag.

You might find the original patents of interest. They are US730822, US757654, US1086873 and US1155848. (Possibly others that I didn’t find or make a note of.)

There was also an Australian woman, known as Mrs Levine, who first imported Tyrrell’s JBL device and then, after it was banned by the authorities, designed and manufactured her own version locally. She patented several improvements, including AU13305 Levine 1914/15 and AU6189/22 Massey 1922/23. You could search for more under the names Levine, Rees and Massey (successive married names).

Okay, let the engineer step in here, Susie's calculations are based on static pressures which do give you an idea, however, you are dealing with fluid mechanics and determining fluid flow. Totally different! You have that static potential of pressure but how do you determine water flow? For a bag, one must figure height of bag not just from where the water leaves the bag but also the column height of the bag, diameter of exit hole of the bag, diameter of the hose, and the combined area of the holes of the nozzle that which water flows out of. And this is also discounting any back pressure from the rectum that may build up. So this can be a very complicated formula to determine how much volume of water is flowing per second and how long it takes to empty a bag of water.

Taking a look at the patents I can see why there were issues with valve design and if what I heard was true, but sure someone will correct me if I am wrong here, I heard that the reproduction units had leaky valves. With today's design knowledge and off the shelf parts, one could make one that is leak proof and long lasting. Are there any detailed pictures of how the valves disassembled or some details not seen in a normal search?

I heard that the reproduction units had leaky valves.

I bought a knock-off version from Betty Tyler in 2009. (I’m not sure of the relation between that and the one from Klystra, but in any case both businesses ceased trading years ago.) It did leak, but the leak I noticed was from the threaded connector to the nozzle, which meant it made a mess when you used it. Another problem was that there was always a litre or more of liquid left in the bag—this is possibly inherent in the design. In the end I stopped using the JBL, though I still have it.

Why bother with trying to get a JBL I have found a good solution I purchased a plastic lawn chair from Home Depot and proceeded to drill a 1/2 inch hole in the middle of the seat. To use this device just feed the rubber hose through the hole in the seat attach the nozzle of your choice, fill the 4 quart bag and sit on the nozzle which if positioned correctly will slip in and be quite comfortable I have used a wide variety of nozzles but do prefer the large colon tube which I can insert about 12 inches. Just sit back, open the clamp and enjoy the sensation of a delightful enema. From my observation I am able to take the full 4 quarts without discomfort something I could not do laying on the bathroom floor

Give it a try and let ,me know how you get on

JBL Sit On Bag Advice :

I found an image of a red JBL sit on top enema bag at this link:

https://www.amazon.com/Massive-Capacity-Rubber-Adjustable-Nozzle/dp/B0029PICG8

What can you tell me about the use of this type of enema bag? Is it suitable for an enema for health, erotic enema, or punishment enema? Pros and cons for its use? Many thanks to anyone who responds to these questions or contacts me via a message to discuss this topic.

The Amazon item is a knock-off of the original JBL Cascade bag. I've posted a couple of dozen times here about the JBL bag and it;s uses and features. Try the site search engine.

I have always wanted to try the JBL bag. Unfortunately, it now seems to be unavailable anywhere I have searched for it.

I had one years ago but some how it got away from me. I forget the capacity it held but I'm trying to say 5 qts. Of course I was never able to empty it in one “sitting”. Just sit on it and let the enema flow. Used to love it and masturbate while enjoying the enema. I doubt the originals are available any more.

I have experience with original and Klystra JBL bags. Their normal capacity was 6.5 quarts, although I never got past +/- 4 quarts. They're now collectors items. Knockoffs/reproductions should be considered with caution re: quality and durability.

@bburl

The original JBL was about 5 quarts and they really do work well They still do show up occasionally, but few are still in good condition after 50-plus years. Often the hanging loop has perished, which doesn't prevent their use in sit-on configuration, but does prevent their use with the hose and nozzles, like a conventions enema or douche bag.

However, there is another failure mode. The original JBLs were not molded in one piece. They were assembled from sheets of cloth, rubberized on on side (the outside). Two of the sheets were placed cloth side to cloth side and sewn around the perimeter. A narrow strip of the same rubber was folded over into a U shape and glued around the perimeter to make it waster tight. The stopper mount and the threaded adapter, for the valve and nozzle, made of brass, were glued made waterproof with additional pieces of rubber sheet. The problem is that, with age, the sewing thread starts to weaken and then fail. The cloth and thread never really dry out, and the instructions go into this.

One evening, several years ago, I had filled an original JBL with warm water, pretty much completely full, screwed in the stopper and had p;laced it on a hard chair, ready for use. The valve was closed, and, as directed, I had lubed the nozzle really well, including the “dome” with a non-oil-based lubricant (K-Y). ( The bags came with a soap stick, to make the user's passage slippery for nozzle insertion). So it was sitting on the chair, bulging, filled and ready for use, nozzle pointing upwards. I undressed and slowly lowered myself onto the bag with the nozzle entering my anus. Actually this not as easy as it sounds as the fine positioning can be tricky. Anyway, the nozzle was correctly up me and I could feel the dome pressing against my anus, completely sealing the opening, so things were ready. I then slowly lowered my body weight onto the warm bag, expecting the water to start flowing into me… and a seam on the bag suddenly burst and the full 5 quart contents of the bag went all over the bathroom floor in an instant. The only lucky thing was that the water in the bag was still clean. Very sad, IMO

If you can get an original bag in good original condition, are a real trip. I normally poo very thoroughly after a 2 quart enema, and have difficulty taking more water from a conventional bag in any position. But the times I have sat on a JBL, even not having pood before the session, I've easily taken over 4 quarts without difficulty This has resulted in a very complete poo. The design of the JBL REALLY works, and used as directed, it appears that the person's colon is very relaxed and it certainly does the job it was designed to do. In fact, I could not even tell how much water had actually gone into me, except by checking the amount remaining in the bag after the session. Usually it was almost completely emptied.

As to the knockoffs, IMO they are junk. They were clearly designed to be sex toys. The designers did not appreciate, or really understand, the original JBLs. The money I spent on knockoffs was completely wasted.

The JBL I have was expected to be a wonderful training “pillow” for my sub but, had a few problems from the start: a small leak sprung from the shaped nozzle, even though it was always sat on gently. Also, though it will hold at least 6 qts, there is no way I could ever get over 3 delivered to the target, no matter how much rolling and repositioning I did in the tub. So, great idea but unless they're made better now, I'd save your money.

I used to have a JBL just like that one, held 6qts. Loved it and could get 2 enemas outta 1 fill. Also bought the 28 hole spray nozzle to go with it, loved that nozzle. https://www.worthpoint.com/worthopedia/spray-nozzle-for-jbl-enema-free-shipping. Had it for years but finally sprung a leak and was irrepairable. 😢

Both the last two posts are about the knockoff JBLs.

And yes, as I've mentioned in other posts on the JBL, it is great training accessory. It not only completely cleans the trainee of poo, but makes them think very carefully about options and living with the consequences.

Have a small JBL, but at box just said that plays music…..why yours do enemas too????? So unfair…..

😉

Be safe

Za