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D420! How about that?

Discussion in 'Regulators' started by axxel57, Dec 5, 2019.

  1. buddhasummer

    buddhasummer Bat sh.t crazy ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Nanny State
    11,082
    4,066
    113
    I'm bummed for you.
     
  2. buddhasummer

    buddhasummer Bat sh.t crazy ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Nanny State
    11,082
    4,066
    113
    axxel57 likes this.
  3. rhwestfall

    rhwestfall Woof! ScubaBoard Sponsor

    # of Dives: 200 - 499
    Location: "La Grande Ile"
    15,499
    17,803
    113
    Look at these epic conditions (2-inch "chop"):

    P_20200815_165708.jpg
    and I am stuck being dry..... :banghead:
     
    couv, axxel57 and Andrew Dawson like this.
  4. buddhasummer

    buddhasummer Bat sh.t crazy ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Nanny State
    11,082
    4,066
    113
    Hand hitting head.
     
  5. lexvil

    lexvil ScubaBoard Sponsor ScubaBoard Sponsor

    # of Dives: 1,000 - 2,499
    Location: jamestown, ca.
    3,683
    3,489
    113
    Took the new 420 for a pony ride in the pool, absolutely beautiful in water performance, think SP has got the tuneing figured out, it’s running as hot or hotter than my early one after all of the tweaking and in water James79 adjusting. These offer really effortless breathing, very happy with this new one, not even planing to take the sticker off that covers the spring adjuster.
    952D6A92-7BB7-452D-B287-9465F36BE854.jpeg
     
  6. USdiver1

    USdiver1 Divemaster

    # of Dives: 2,500 - 4,999
    Location: Southwest Ohio
    578
    283
    63
    Does the RCMP have a SCUBA certified horse? If not, it seems to be a bit of a hollow threat to keep you from drift diving the place, just make sure that you enter and exit the water from the US side. Think of it like a US Cuban policy in reverse, if a cuban sets foot on dry land, he is in the US and can stay, just don't set foot on dry land in Kanukville. 1 dive all year? Y'r killin' me, it's August for crying out loud.

    Come join us at White Star quarry in Ohio on 8/29 for some double hose goodness.
     
  7. rhwestfall

    rhwestfall Woof! ScubaBoard Sponsor

    # of Dives: 200 - 499
    Location: "La Grande Ile"
    15,499
    17,803
    113

    RCMP & CBP (Canadian) have fast boats and routinely (many times a day) are driving "the line" to get people....

    I am in Canadian waters when I am in 12-15' of water....

    Law currently states "under way" or you are in violation of the order issued by the Prime Minister...

    Now, I go to Ohio, and then, when I come home, I get to sit at home for two weeks (without pay) in quarantine...

    It's a freaking train wreck!
     
  8. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    4,904
    6,169
    113
    Well, I'm in sidemount heaven!
    I picked up my pair of Mk19/D420's at the LDS today! Hats off to Jon Edens at Marin Diving Center, San Rafael, CA!
    20200819_183746.jpg
    So here are the test results. My serial numbers are one digit apart, so there's a 50/50 chance it was the same technician who built them.

    Set #1:
    20200819_184243.jpg
    2700 psi (sorry, shop tanks not quite full)
    IP 141 psi. Crisp lockup, no creep.
    D420 cracking effort: 1.4" WC

    20200819_184435.jpg
    300 psi tank
    IP 147 psi. Crisp lockup, no creep.
    D420 cracking effort: 1.3" WC

    Set #2:
    20200819_184911.jpg
    2700 psi input
    IP 138.5 psi. Crisp lockup, no creep.
    D420 cracking effort: 0.7" WC

    20200819_185109.jpg

    300 psi input
    IP 143 psi. Crisp lockup, no creep.
    D420 cracking effort: Slight Freeflow!!

    When I took the purge off, I expected to find the valve lever tight up against the diaphragm.
    20200819_192418.jpg
    But in fact, they'd done that part right. There was a little tiny bit of taptap between the diaphragm disk and the lever under pressure. So I'm assuming it was just a knucklehead failure to put enough spring pressure on. I'll pry the disc off later and fix it. No big deal.

    Conclusions:
    1. Mk19 IP spread is 4.5-6.0 psi, full tank to empty. Not bad!
    2. Scubapro techs still haven't quite gotten their act together in tuning the D420.

    Can't wait to dive the Mk19's. They look to be the perfect thing for an easily environmentally sealed turret reg, since I refuse to dive a Mk25. The IP spread is perfectly acceptable.
    As for the D420, If you work on your own gear, we have a great reg here. If you expect it'll be good to go right out of the box, well, I think we're still seeing growing pains.
     
  9. USdiver1

    USdiver1 Divemaster

    # of Dives: 2,500 - 4,999
    Location: Southwest Ohio
    578
    283
    63
    I'd be interested in seeing how the SP D420 compares to its great-grandfather, the SP Pilot. I'll probably have my Pilot at White Star quarry on 8/29, and if the past is any indication, there should be one or two other functioning Pilots there as well. Anybody going who could bring a D420?

    P.S. Why did SP name it's new king second stage after Puff/MJ/Weed?
     
  10. lexvil

    lexvil ScubaBoard Sponsor ScubaBoard Sponsor

    # of Dives: 1,000 - 2,499
    Location: jamestown, ca.
    3,683
    3,489
    113
    I have a few A.I.R. 1’s and it compares very favorably.
    As for the weed reference, I think they are just running out of numbers, the “20” being this is like that but different, like the s600 becoming the s620, or maybe they were high...
     
    Andrew Dawson likes this.

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