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  1. randini

    Spring Fin Straps for Mares Quattro Avanti Fins

    For those of you worried about snapping the mares bungee, they use the same bungees used on spearguns. Keep a set of THESE around and you can reuse the bits and just replace the cord.
  2. randini

    Fins for someone with tendinitis / achilles issue

    Definitely consider or at least have him try spit fins in a pool. I've always used paddle fins (quattros), but a few years ago I sprained my knee skiing. Within a week I had to do a dive for work and couldn't move my bad knee with the paddles. I borrowed some ScubaPro TwinJet Max splits and it...
  3. randini

    Question do full face masks expire?

    Thanks. I'd rather not give details about the model & manufacturer publicly. The same manufacturer has more modern models that look like they use much of the same technology and probably similar kits. I hadn't thought about them covering their assets, but I suspect that it's either that or...
  4. randini

    help appraising older Poseidon

    Thanks everyone. The buyer will be happy about that, the seller not so much.
  5. randini

    help appraising older Poseidon

    More pictures
  6. randini

    help appraising older Poseidon

    Hi all, A pair of co-workers have asked me for guidance in establishing a fair price for a reg that one wants to sell to the other. As far as I can tell it looks like a Poseidon Cyklon 300 with a 2305 1st stage and a 1133 2nd stage. Apparently it was serviced "a few years ago" and put into...
  7. randini

    Question do full face masks expire?

    Hi, I was recently handed 5 boxes containing new old stock full face masks and according to the boxes they were manufactured in 2007. 1 or 2 have been opened for people to try on, but these have never seen water. I've never used any FFM and will not without some proper training. When I asked the...
  8. randini

    Closed heel fins for frog kicking laps in the pool

    Barefoot it!! Scubapro makes some rubber snorkelling fins that are pretty good for this. LINK You could also go with some of the bungee'd barefoot fins like scubapro go, Aqualung storm, etc (Tusa and mares even have versions). I used the storms successfully in roatan while doing my prism2 training.
  9. randini

    DIR- Generic Removing kit (BP/W) underwater - risk/reward & weighting

    I always thought that the rig doff/don while UW was more of a watermanship (waterpersonship?) challenge. Something to force the candidate to work through in a thoughtful manner and show how comfortable they are in the water rather than a real world skill that needs to be learned. As for...
  10. randini

    Question How old are you and how long certified? Poll- please take part!

    53. certified in '95 and around 2000 dives. Mostly scientific diving. No zero to hero for me. I did my first OW instructor training session during the week of the 25th anniversary of my original OW certification. Also have a few tech certs that I didn't start on until after I'd been diving for...
  11. randini

    Size of Allen Wrench for DIN Valve Yoke Insert

    Mine are all 10mm or 1/4". I've rounded a couple 1/4"ers using a 6mm wrench.
  12. randini

    TDI CC Rebreather (Air Diluent) - Advanced Nitrox

    Possibly. But since deco procedures my ascent rate has increased (i.e. I go up between stops faster now than I used to) in order to meet the run times of the dive plan (always staying within the recommended 10m/min). And I've always taken my time at safety stops. I also noticed something...
  13. randini

    TDI CC Rebreather (Air Diluent) - Advanced Nitrox

    No you don't get AN with the CCR certs. And as mentioned the AN course by itself doesn't do a while lot. You're better off getting AN together with deco procedures so that you learn how to carry and use stage tanks and can practice gas switches with an instructor. That way you can use whatever...
  14. randini

    Help, I hate my Mikron

    I've been diving a mikron for years, and before it I used a micra. I never really had bubble in the face issues. All you need to do is tuck your chin down a bit so the bubbles go around your jaw. You don't need to bring your chin all the way against your chest or anything radical. Just anytime...
  15. randini

    HOG D1, can't unscrew the environmental cap

    @rhwestfall and @Jim Lapenta thank you, thank you, thank you!!! I was having the exact same problem as OP, but with a Dive Rite XT1. I had one of those tools made by a local machine shop (only cost me $20). Put it all together, put the tool in a vice and one tap on the pin spanner with a...
  16. randini

    Curaçao Diving Guide and Interactive Map

    What a great tool. I wish I'd seen this 10 days ago when I arrived here. Thanks!
  17. randini

    Making an anchor for a mooring line

    One thing to consider is that cement and rocks weigh about half as much in water as they do on land. If you're set on a drum full of cement, try to fill it with scrap metal instead of rocks or gravel. Things like chain, old brake drums and disks etc. that you can get real cheap from a junkyard...
  18. randini

    Fin recommendations for an assistant instructor

    Another vote for the quattros. I've been using them since 96 (found them in a bargian bin for $20). About two years ago I lost one and bought another pair (that means that the first ones ended up costing me less than $1 per year!). I have tried several other fins over the years, but always come...
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