D420! How about that?

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lexvil

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I didn't dis-assemble anything on the 420 (combination of no documentation, not mine to tear apart, and it cost you more than I have total invested in the rest of what I wore in the pool!), so I'm not clear on the T attachment. I already boxed it, but as I recall, it looked like tabs, or flaps. If you mean for the C370, I've never seen one in person. Depending on the attachement method, it may be pretty easy to re T them. I'm actually planning on doing T's for my old Conshelfs with the screw on T's.
Not a big deal, just something to think about on the T, I think it’s just tabs and a cross pin.
 

rsingler

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The exhaust tee is indeed just a pin and tab arrangement, and could be replaced by a wider model if SP chose to make one.
IMG_20200327_091631.jpg

IMG_20200327_091821.jpg
 

James79

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The exhaust tee is indeed just a pin and tab arrangement, and could be replaced by a wider model if SP chose to make one.
View attachment 576714
View attachment 576715
Figures... lol
Maybe down the road (when I catch up on a few other projects) I'll see about borrowing one again and re-T'ing it. In the mean time, I may do some rough sketches.
 

lexvil

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Figures... lol
Maybe down the road (when I catch up on a few other projects) I'll see about borrowing one again and re-T'ing it. In the mean time, I may do some rough sketches.
You have one in hand, go for it.
 

rsingler

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Figures... lol
Maybe down the road (when I catch up on a few other projects) I'll see about borrowing one again and re-T'ing it. In the mean time, I may do some rough sketches.
Yeah, that could be a cool 3D printing project...
 

buddhasummer

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If Rob figures out what was up with mine, if they do in fact prove themselves to be consistent and reliable, if SP does come out with a wide exhaust T option I'd be interested again. A lot of "ifs" though.
 
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Hi I also bought the new D420, I opened it to inspect it, I noticed that the lever (37) is above the case (15), about 1 mm, touching the diaphragm (38), I read in your comments , that it is better that the lever (37) must be 1/2 mm inside the case (15), so my question to lower the lever (37) what should I do, unscrew the screw (16), or unscrew the nut (24)? thanks .
 

Magnus Lundstedt

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DH in Curacao. :thumb:

I use MK2 for for pony/deco, a collection of SP MK-3,5,10 and 15 pistons I rarely use (collected over the years, either gifted, or with seconds I was after), and wife & daughter use M20/G250 for warm water travel. With the exception of my Poseidon rig, all my other stuff is diaphragm (MK-17, HOG & Deep6). Not a piston fan, and wouldn't buy any more..

YMMV

Maybee i missunderstand you, but have Poseidon ever made any piston regulators?
 
https://www.shearwater.com/products/swift/

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