Question about Scubapro MK17/S555 Regulator
HP port on left side of MK 17 flows about 1/4 what right side port flows and SPG takes a minute to reach full pressure or bleed down after turning tank valve off.
The spg hose has a oriface in it so that if the hose burst you do not lose all your air underwater at once. have your scuba shop test it for proper operation.
Posted on May 16, 2014
SOURCE: Extreme loud sound on MK/25
did you check your bulletins from scuba pro ? depending on the actual year of mfg ( you can call scuba pro and give them serial number )
there was a retro fit kit made for the mk 25 first stage of you send me your email i will send the bulletin to you
other wise if you wew working from an earlier service guuide then you would notbe aware of the retro fit kits and pistons some of the earlier schematic will not show you that o ring that you were refering to
Posted on Aug 28, 2009
May not have exactly your model, but something very very similar. Also, keep in mind, the second stage will free-flow as an "overpressure safety" if the first stage is malfunctioning. Check your intermediate pressure (should be ~150). If you can't do this, try your second stage on another first stage (any brand), and try another second stage on your first.
If it is for sure your second stage, check for proper adjustment of demand lever, bent/damaged demand lever or diaphragm plate, or damaged valve seat.
Posted on Jun 27, 2010
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