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EWNichol
New Member
Posts: 2
Joined: Sun May 20, 2018 4:43 pm
First Name: Enoch
Location: Central California

Flooding During Cleaning

Sat Jan 11, 2020 9:38 pm

I recently started diving my rebuilt DA AM. It has performed really well, but I have been having trouble during cleaning. After soaking the reg I consistently find it flooded. The flooding is definitely occurring during the soak (I've checked for water at the dive site). I've been following the Care & Maintainance Guide's recommendations (o-ring in dust cap), and have tried positioning the mouthpiece both out of the water and below the cans during the soak, but both ways caused a flood.

I've noticed that the nylon hose clamps I use are a little large. They are old, so they may be stretched out. One clamp barely grips when fully tight, the other grips well enough, but is bottomed out. To fix this I've been wrapping the hoses with some latex and clamping ontop. This solved the problem, and I haven't felt any water leaking into the hoses underwater.

Any advice is welcome,

Thanks

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Herman
VDH Moderator
Posts: 1245
Joined: Thu Oct 25, 2007 1:45 pm
Location: Raleigh NC

Re: Flooding During Cleaning

Sun Jan 12, 2020 9:26 am

As long as your cans are sealed properly ( body gasket in the correct place and the ring tight- I have seen a number of DH regs with the gasket on the wrong side) and there are no cuts in the hoses (common near the edge of the horn) then water is coming in via the mouthpiece. The check valves are not perfectly sealed so given a little time, water can get past them. If you are using the C clips, it is possible they are not tight enough. In any case, water in the cans isn't really a big deal as long as it's cleaned out. I prefer a different cleaning method, if saltwater is left in the cans, it can cause a good bit of damage. This is what I do to ensure I get it all out. I am curious what other think. I do step 1 after every dive day, I go to step 2 after the dive trip is over, be it a day or a week.

1. Rinse the reg on the boat or dock, if possible flow water over the reg and into the mouthpiece, making sure the exhaust side is down. Shake the
reg to remove as much water as possible.
2, Back in my home/room I remove the hoses from the cans and flush them with warm water making sure I fill them completely to get any salt water
out of them. I sling them the remove as much water as possible then leave them to dry hang so that any remaining water can drain out. I go back
by for a few additional rounds of slinging any remaining water out.
3. Next, fill the cans with warm water and slosh it around, dump it out and repeat several times. This removes any salt water that got into the cans
it's common for some to get in and if not removed can cause a lot of damage. I know some are thinking OH NO water in the cans but think
about the design for a minute and you will realize the inside of a DH can is no different than the inside of a single hose reg. We all rinse the
interior of our single hose second stages.
4. If the cans have a band clamp, I take them apart and dry them, otherwise I set them with the supply horn down so any remaining water can
drain out.
5 After a day or 2 of drying, I store them with the hose off in a container that will allow some air flow.
Herman

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ScubaLawyer
Master Diver
Posts: 1385
Joined: Thu Apr 08, 2010 11:25 am
First Name: Mark
Location: Laguna Beach, CA

Re: Flooding During Cleaning

Sun Jan 12, 2020 1:18 pm

Agree with Herman. I did have an issue with a flooding can with one reg. Took me a while to figure it out but I finally found a hairline crack where the horn meets the can. My 2psi.
"The diver who collects specimens of underwater life has fun and becomes a keen underwater observer. .. seek slow-moving or attached organisms such as corals, starfish, or shelled creatures." (Golden Guide to Scuba Diving, 1968) :D

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EWNichol
New Member
Posts: 2
Joined: Sun May 20, 2018 4:43 pm
First Name: Enoch
Location: Central California

Re: Flooding During Cleaning

Wed Jan 15, 2020 2:33 am

Thank you both for the advice!

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