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i used the MK25 with the g260 second stage for fundies, i have Mk25's for my dubs and all my stages/decos except 100% o2. never had a problem, they work great. For Monterey id get the EVO version, it has a coated spring to help prevent ice forming (not a problem in Monterey but if you go to...

the Divesoft uses the speed of sound to measure the percent of helium. it is true you will never need to change a helium sensor. it still uses a galvanic sensor (same as almost all the other nitrox/trimix analyzers) for o2 content. the o2 sensor only has a service life of 2-3 years, then it will...

Another vote for the Halcyon 3.3' (1m) oral inflate DAM and a finger spool, i recommend the light monkey spool with 100' (30m) of line

i dive the 400xtreme, with my trilam drysuit i need 28lbs in salt water with a steel 100cf tank. they aren't that much more floaty than DUI thermals (i haven't tried other manufactures thermals so can comment on those). I've heard great things for the 400x and a heated vest under, also has the...

you are required to do deep and nav. the other 3 are up to you and the certifying instructor.

If you come across a yellow weight belt rented from Diver Dan's with a SMB attached and partially inflated at breakwater please let me know. we were unable to recover it after a class.

your e learning is only good for one year, each module will have a completion date, its the individual completion dates that matter. finish your ocean dives before any of the dates reach 1 year old and you'll be good. our shop does it over 1 week, the week before an email goes out with...

I've got one and it works very well. the 1/2" square in the side accepts a 1/2" socket adapter that you can put in your power drill. this makes re-spooling the line extremely convenient. it has a nice large handle that makes it easy to use with dry gloves (SF Bay area diver water temp. 55F). all...

i wash the whole light assembled (corded canister light) after every day of diving. every 10 or so dives after its dry i disassemble the canister remove, clean and relubricate the o-rings. i also take a tooth brush to the o-ring grooves and threads of the rechargeable canister and the part of...

burst discs are marked with the burst pressure. the pressure of the disc should be 4 thirds of the working pressure. 3000psi (AL80) 4000psi burst disc 3442psi (HP100) 5250psi disc

I bought mine through my LDS, they were very knowledgeable and helped set it up correctly. i only had to make minor adjustments after my first dive with doubles.