Sportsways single hose diaphragms

[vance]

I looked around some to try to find a replacement second stage diaphragm for a Waterlung 300, but couldn't find a lot of information that led to an answer. Anyone know of a diaphragm that will work in this thing?

[nikeajax]

YEP! PM sent lad...

JB

[vance]

Thanks, JB.

Anyone know about how to get the valve body out of the plastic can? There's a large snap ring that I've weaseled up onto the flange, but that just keeps the valve body from slipping in or out a 16th or so. It must be a couple of pieces that unscrew?

[tomcatpc]

Are there diaphragms/parts available for various Sportsways/Waterlung regulators if you look enough? My future-self wants to know.
Mark

[vance]

I just took the 300's first stage apart. It's a very similar first as the Hydro Twin II, and has presented some intriguing ideas to me. The first stage seat is different, as is its metal seat inside the body.

Does anyone know if the Hydro Twin II's were upgraded with these parts? The balancing o-ring system appears better (easier to replace) in the new style plug, and the seats would appear to be better.  Can't see any reason offhand why it couldn't be fitted into the HTII.... Any of you old time reg techs know?

EDIT: I tried. The plug sizes are different. The singlehose first's plug is considerably smaller in diameter. Too bad. Having the option to change up the seat would have been nice, given NOS seats for the HTII are $45 on the usual suppliers' sites and probably scarce. The HP side is different too. The 300's spring is a lot heftier and the covers are different. They have the same diameter and the covers do screw on, but I didn't fool with it too much. 

Here's the guts of the 300:

Here's the Hydro Twin II seat:

and what the whole thing looks like:

[vance]

BTW, the round disk thingy in the picture of the old style seat isn't a seat, it's a guide for the stem of the plunger. It looks like the seat inside, but notice there's no bevel. They eliminated the need for it by redesigning the cap screw, and using a plastic disk on the end of the plunger shaft for the spring to sit on.

[nikeajax]

Very fun buuddy: thanks for Sharon... sharing!

I'm thinking this must be the replacement for the Navy Unit:







I think SW gear is my new drug of choice!



JB

[SeaRat]

I'll look at my Sportsways regs and see what I can find out on the second stage.

John

[tomcatpc]

I can see me getting a Sportsways in the future. I just need to actually dive what I currently own. Guess I just need to dive more?, but really, it is difficult deciding what to take along when I go diving now. But I do want to get a Sportways in the future, but I need to get my Christmas Voit Titan up and running first...
Mark

[SeaRat]

Vance,

I have an answer on your Sportsways second stage. The piece with the clip on it that you want to pull is actually a 2-piece unit. I have two identical second stages, but they are White Stag DEEP I second stages. You will notice that there is two flat areas on the inside of the second stage; this is for a wrench, and a second wrench on the outside after taking off the LP hose fitting. The outside metal piece is actually the seat, with an O-ring to seal it against the poppet housing (my names) on the inside. Once these two are apart, the poppet housing will come out from the inside very easily. The housing is keyed, and can only go in two ways, and the right one is pretty obvious. When putting it is, do that without the key circling, and then place it on from the outside. When you do take it apart, be sure to depress the demand lever to pull the rubber seat away from the brass orifice, and do the same when you put it back together too.

By the way, this second stage is better than the MR-12 original second stage, and is the second stage I elected to take on my deepest dive. That dive was logged, and here is that log entry. My first stage for that regulator was am MR-12, and I used the MR-12 second stage for my octopus. This was the first time, during these dives in Warm Mineral Springs, that I used an octopus, and Larry Murphy gave me a LP splitter if I promised to always dive an octopus.

Dive location: Warm Mineral Springs, Florida.
Date: March 25, 1975; Depth: 210 feet; Participating divers: Larry Murphy, John Ratliff; Bottom tome: 15 minutes; Visibility: 60 feet

Water conditions: clear and calm with an almost full moon for the night dive.

Dive Plan: dive to 45 feet to find the north buoy and go down it, then follow a ceiling line down to the bottom from the compass rows at 70 feet; planned depth, 190 feet.

Water conditions: the water was unusually clear at the surface, temperature at the surface approximately 87 degrees F; encountered a thermocline at the bottom which was approximately 95 degrees F.

Observations: see below

Special Preblems and Ideas:
1. Began getting narced at about 180 feet; symptoms pronounced at 200 feet but didn't impart reflexes as I'd expected; it seemed more like a local anesthetic on the. Roof of my mouth and trachea when I breathed. There was also a tingling sensation in my lef lower arm.
2. Depth gauge malfunctioned, read 150 feet at ~180 feet, 175 feet at 210 feet.
3. Used "cave bottom time" (ascent time to 1st stop is figured as bottom time).
4. Decompressed on oxygen.

Good luck,

John

PS, I did not fill out the "Observations" section of my dive log, probably due to the iming of this dive. On my last full day at the Warm Mineral Springs Underwater Archeological Project,Larry Murphy asked if I had been to the bottom of the springs? I told him that, "No, I had only been supporting, and have not been to the bottom." Then Larry asked if I wanted to go down, and I affirmed my desire to do this dive, and Larry set it up for that night. We started about 11:00 PM, and ended it somewhere around 1:00 am after decompression. Then, the next morning my friend James and I started our drive from Florida to Oregon.

[vance]

Jan 14, 2018 17:34:08 GMT -8 nikeajax said:

Very fun buuddy: thanks for Sharon... sharing!





I think SW gear is my new drug of choice! 



JB

The Sportsways units are kew. The first on the Navy looks the same as the 300s. I think the Navy looks much better than the 300 second though.

[nikeajax]

I also have this one, not sure what model though:









JB

[vance]

That orange one looks a lot like a Zeagle Z90, but for some small differences. Here's a second stage parts lot that is the same, but no ID of model. It has an intact label on the purge button, though.

www.ebay.com/itm/SCUBA-DIVING-SURPLUS-SPORTSWAYS-PRIMARY-SECOND-STAGE-REGULATOR-PARTS-PRE-OWNED-2/291149166092?hash=item43c9d7b60c:g:XpEAAOxyyFhTd1LC

This pic is someone's from Google images:


It has a one piece clamp, but looks basically identical. Again, no model information.

[vance]

Here's my new to me SportDiver II before cleaning it up:




It's in good shape and breathes well. I might put the second on my Hydro Twin II. I like this type of second stage. They look kew.

[nikeajax]

Jim was saying that Zeagle didn't make their own gear: they rebranded other's, so it doesn't surprise me what you're saying.

I think that sounds like an excellent idea your using that SD as your octo, they are a very neat looking second stage...

JB