Whether it's a lake, pool or saltwater the enemy is allowing the equipment to dry before rinsing. For this reason I use a large plastic container to transport my gear and keep it wet until cleaned. I don't advise letting it stay sealed in the container any longer than necessary otherwise mildew will start to make it stink. If your gear stays wet until it is thoroughly rinsed including inside the BCD then that is all that will be needed. Otherwise soaking is needed to rehydrate the contamination before it will release it's hold on your gear. Chlorine does it's damage over time the longer it is on your gear the more time it has to do it black magic so limiting exposure is the main thing. With salt the crystals do the damage so keeping crystals from forming is the trick and they only form during drying. You need to get the salt off and out during the time the gear is wet. It's simple just dilute with plenty of clean fresh water. Lake water is the least problematic a good rinse to remove any organic matter that was floating in the water and you're good.
You can then speed the drying process with a fan but stay away from excess heat like a hair dryer. Good air flow is the ticket but on a humid day it will still take a while to dry. The bladder should be drained as well as possible and completely inflated. Pick a purge valve and hang the bladder so it is the lowest point tap the sides of the bladder to help the water move to that point and then open the valve to release the water spray. Reinflate and repeat until little or no spray is apparent. Leave the bladder inflated to dry overnite before releasing the pressure for storage. Also UV exposure over time will do damage to almost anything even if it is UV stabilzed so drying in the sun may not be the best course of action.
You can then speed the drying process with a fan but stay away from excess heat like a hair dryer. Good air flow is the ticket but on a humid day it will still take a while to dry. The bladder should be drained as well as possible and completely inflated. Pick a purge valve and hang the bladder so it is the lowest point tap the sides of the bladder to help the water move to that point and then open the valve to release the water spray. Reinflate and repeat until little or no spray is apparent. Leave the bladder inflated to dry overnite before releasing the pressure for storage. Also UV exposure over time will do damage to almost anything even if it is UV stabilzed so drying in the sun may not be the best course of action.