perhaps, but on the Apeks they tend to creep and leak. The Hogs go bang and blow out the enviro seal. I have never had this issue with a piston reg (most of which are scubapros).
Hog D2 Environmental Seal Burst
- Thread starter DenbyS
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Pao
Contributor
I am also wondering if it was HP seat failure as well. If it was the reg would be un-usable.
I have seen plenty bulging(environmental seal) Apeks regs before especially from those who believe if not broken don't fix it. For me it is the telltale signs that the reg requires service sooner but not later.
I have seen plenty bulging(environmental seal) Apeks regs before especially from those who believe if not broken don't fix it. For me it is the telltale signs that the reg requires service sooner but not later.
Pao
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Caveeagle
Contributor
Very interesting thread. I have one of my HOG D1 first stages that I pulled out of service because I noticed pressure building up under the environmental seal/cap. It looked like it was just starting to 'balloon' up, but had not burst yet. I had another 1st stage, so I just swapped it out, and was holding onto the 'defective' unit for the next opportunity to take the HOG service class. I assumed it was the HP seat as well.
Pao
Contributor
Maybe you can check the IP of that reg?
Pao
Contributor
Will the diaphragm "give" before the reg freeflows? I just realized that increased pressure in the environmental chamber could theoretically increase the IP in a balanced diaphragm reg.
bamafan
Contributor
I have some dive buddies who have Hog regs and they have had numerous failures. My Scuba Pro piston regs are still working. I have gone 3 or more years between servicing them and they have never caused me to miss a dive.
I just got back from a 10 day cave diving trip in Cozumel over Labor Day and a buddy on the trip had this exact same issue with their Hog regs.
I really don't see the cost savings with these regs. I buy my regs used and I pay a Scuba Pro tech $50 a set to rebuild them. So for $200 or less I have what I feel is a better quality reg. I remember hearing about some of the Hog regs being sent out new and the reg was not threaded to screw in a hose. I am sure the Chinese / Taiwanese regs will continue to get better as time goes on but if you are buying them because they are a good deal it seems to me used Apeks or Scuba Pro are a better deal.
I just got back from a 10 day cave diving trip in Cozumel over Labor Day and a buddy on the trip had this exact same issue with their Hog regs.
I really don't see the cost savings with these regs. I buy my regs used and I pay a Scuba Pro tech $50 a set to rebuild them. So for $200 or less I have what I feel is a better quality reg. I remember hearing about some of the Hog regs being sent out new and the reg was not threaded to screw in a hose. I am sure the Chinese / Taiwanese regs will continue to get better as time goes on but if you are buying them because they are a good deal it seems to me used Apeks or Scuba Pro are a better deal.
The HP seat doesn't seat right, the IP goes sky high, the main diaphragm pulls out from under the sealing edge which then sends the enviro chamber pressure sky high and the enviro seal tears or bursts. Seems like a common failure mode on these.
For whatever reason, when the HP seat fails and the IP shoots up the 2nds don't want to leak off the excess pressure/gas.
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