Question What is the DIR method when it comes to deploying an SMB?

[Learner Diver]

Do you remove regulator from mouth and inflate SMB by breathing into valve?
Do you vent gas from regulator exhaust into opening of SMB?
Do you inflate SMB using inflator hose or connection fitted to first stage?
Do you use mini cylinders attached to SMB?
CCR or OC divers...

 

[Wibble]

Doing It the Right way is whatever is the most appropriate way that works for your circumstances.

A big SMB is vital and filling one of those using exhaled gas is making life difficult.

Ways to fill a bag:

• Using CO2 gas cartridges - very effective, small, quick
• Using a crack bottle filled from a passing open circuit diver's backgas -- work well, bit big
• Using a drysuit inflation hose or bailout hose to fill using the spigot -- works well, not using expensive breathing gas
• Using an "octopus" to blow air up the chuff of an open bag. This is a crap method and many people have been dragged to the surface when their "octopus" got tangled.
• Exhaling up the aforesaid chuff. I give up...

If you can be bothered, here's a recent post describing how to put up a bag

SMB Depth Questions

You need enough line for the worst case scenario as far as current goes. I'd plan on 50% more than maximum planned depth at minimum, I used a Manta jr quick release reel that holds 250' of line (or maybe it was 160') I cant remember now. It's not much bigger than a spool and much more...

scubaboard.com

 

[DiveLikeAMuppet]

Don’t dive outside of your training. Take a course and get certified: Delayed Surface Marker Buoy (DSMB) Diver | PADI

In all seriousness, whatever you do, practice it in the shallows. Your method will also depend on depth and size of the DSMB. Avoid methods that use regs unless in an emergency - oral inflation is a cool party trick on a platform, not fun when your hands are full.