the s555 is a fine reg. it is an s600 without the the breathing resistence knob. it is balanced and can have the s600 knob added later. a mk11 is good in warm water. i have one as an octo on a mk17 an s600 primary breaths as good as the s600.
decisions with SP reg pls
- Thread starter batman diver
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OP
batman diver
Contributor
How easy have u found the g250 to service ? And how complicated will a mk25 be to service
Zung
Contributor
An infant could service the G250 in his sleep. The MK25 will have to wait until kindergarden; it's not a lot more complicated, but it requires a bit of physical strength that an infant does not have. 
OP
batman diver
Contributor
An infant could service the G250 in his sleep. The MK25 will have to wait until kindergarden; it's not a lot more complicated, but it requires a bit of physical strength that an infant does not have.
Is a balanced diaphram or balanced piston easier to service .... Ha ha very nice analogy , this hoever coming from some one who from wat iv seen in the forums knows a lot about how regs work
Zung
Contributor
Not guilty! I lifted that one straight out of Oxy's book, p.204, with minimal customization .
Diaphragm I don't know; looks like they've got a few more parts to deal with. I've got a couple of AL's that sit at the bottom of my closet. I guess I'll have to do them one day, but no rush, they don't get a lot of use and they last a long time.
.Diaphragm I don't know; looks like they've got a few more parts to deal with. I've got a couple of AL's that sit at the bottom of my closet. I guess I'll have to do them one day, but no rush, they don't get a lot of use and they last a long time.
OP
batman diver
Contributor
Zung
Contributor
I've read a couple of cases where the regs are not well adjusted out of the box; I guess the odds are 3-4%. if the IP is too high AND IF the 2nd and the 1st are not tested together as they should, then it might free flow.
Until you're back to prosperity, do a quick & dirty test: slap the reg on a tank, listen for a hissing sound (free flow), draw a few breaths, listen again, let it sit for 10-15 minutes, listen again. If you don't hear anything, it's probably safe. Try it out in a pool or do a little shore dive.
Until you're back to prosperity, do a quick & dirty test: slap the reg on a tank, listen for a hissing sound (free flow), draw a few breaths, listen again, let it sit for 10-15 minutes, listen again. If you don't hear anything, it's probably safe. Try it out in a pool or do a little shore dive.
OP
batman diver
Contributor
got my g250v and mk25 today very happy , thanks all
very happy , thanks all
k o ordered a g250v and mk25 ... 4 days and its here
It's fairly unlikely on a new reg that you will have IP problems. Most of the time an IP problem will show up as a slight freeflow, most divers don't even notice they have one. I will do easy dives with some creep.....in the reg that is
but not deep dives because there is obviously something not right in the reg. Complete failure is not likely but still why take the chance. It will show up as a slow stream of bubbles coming out of 1 or both second stages.....but then again a defective or miss adjusted second stage can do the same thing. If you purge the second stage and it takes some time for it to start freeflowing again, you have a IP creep, if it comes back very quickly you most likely have a second stage issue. In any case, don't jump to conclusions, wait until you can measure it with a guage. You can make an IP gauge from a air gauge (like used on air compressors) 175 to 200 psi scale, a fitting to convert the gauge from a threaded fitting to a barb, a hose clamp and an old LP hose. Cut the female end off the hose, stick the barb in and clamp it down with the clamp, DIY IP gauge for a few dollars if you have an old LP hose.
OP
batman diver
Contributor
so i used my reg for the 1st time today it was beautiful , went down to 35m and put the resistance to min and it breathed super easy and smooth , , did some upside down diving too looking at stuff , and i couldn't notice a difference , the all steel really makes a difference , all in all im exceptionally happy , so thanks all
it was beautiful , went down to 35m and put the resistance to min and it breathed super easy and smooth , , did some upside down diving too looking at stuff , and i couldn't notice a difference , the all steel really makes a difference , all in all im exceptionally happy , so thanks all Similar threads
