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  1. Erik22

    Question LP Diaphragm Production (For Older Poseidon and US Divers Regulators)

    Hey guys, I have begun producing LP seats out of 1/16 EPDM and a 9/32 punch. I would like to now produce some LP Diaphragms as well. I have had some success making the LP seats fit in the Poseidon Cyklon (don’t want to pay $20 a piece) but I haven’t found a good price for the 1189 diaphragms...
  2. Erik22

    Scuba Pro MK V w/ 109 “Cold” Free Flow

    Hey guys. Experienced reg service tech here. Let’s take a look at this situation and try to find an answer? This is something that puzzles me. Recently I took my Scuba Pro MK V with balanced adjustable 109 conversion diving. The air temperature was 2 degrees celcius. The water was 3.8 degrees...
  3. Erik22

    Mystery Double Hose Seats

    Hey guys, These were in a parts drawer at my LDS. I initially thought they were for a Mistral or Aqua Master, but upon inspection it appears they are different. There is one Aqua Master seat in the mix, the third seat from the left. Any idea what regulators these seats belong to? Thanks, Erik
  4. Erik22

    Question La Spirotechnique Royal Mistral Orifice O ring info

    Hey Divers, I have two spirotechnique royal mistrals. The seats are decent, those can be polished. What I am looking for is the o ring size that is on the removable volcano orifice. Unlike the USD mistrals, you can actually remove and replaced these as they wear out! Does anyone happen to...
  5. Erik22

    Questions regarding Scuba Pro regulators & US Divers Conshelf

    Hey guys, I very recently saw the passing of Bryan of VDH and that really shocked me. I had received a lot of help and parts from Bryan and had been buying from him for nearly 10 years. Hell, I just got some kits from him in June. I have several regulators that I was hoping to fix up, mostly...
  6. Erik22

    Poseidon Cyklon Service Advice

    Hello divers, A friend of mine is selling his Cyklon. It’s likely pre 1995, so probably a Cyklon 300. I should be able to get some photos of it in a few days. Not sure if it has the GSB 1/8” ports. Is there anything specific I should know about these regulators, such as proprietary tools...
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