Getting rid of salt residue, corrosion in regulator at home.

[Micko1974]

I use 50/50 white vinegar/water to clean all part of regs. I did have an untrasonic before, but found vinegar better. Just don't fofget that you're soaking them

 

[happy-diver]

Stored like bums by bums

PHOSPHORIC ACID on the chrome the painted label the crown sticker, PHOSPHORIC ACID everywhere

Used a bone tool made from a cutting board to use along the label edges to hasten the eating process

WATER water everywhere

NO, STINKING CHROME STRIPPING VINEGAR anywhere, or any of that other, junk


Considering Poseidon recommends Hydrochloric acid Phosphoric must be a cinch

The condition a divers reg should be

 

[afieldofblue]

Stored like bums by bums



PHOSPHORIC ACID on the chrome the painted label the crown sticker, PHOSPHORIC ACID everywhere



Used a bone tool made from a cutting board to use along the label edges to hasten the eating process

WATER water everywhere

View attachment 852583

NO, STINKING CHROME STRIPPING VINEGAR anywhere, or any of that other, junk


Considering Poseidon recommends Hydrochloric acid Phosphoric must be a cinch

View attachment 852585

The condition a divers reg should be

what concentration of phosphoric acid are you using? 85%? And do you dilute it?

Thanks!

 

[Frogman82]

I use citritic acid to remove deposits and find it to be less aggressive than vinegar. 1tbsp of citritic acid in the ultrasonic cleaner and a squirt of dishwashing detergent to act as surfactant. Clean them for a couple of minutes, inspect and repeat as needed.

 

[rsingler]

Simple Green? 1:8 to 1:30 v/v less than 40°C
Extreme Simple Green for oxygen cleaning? Same solution, no temperature limit (no green dye).
Vinegar? 3% (50:50 household)
Citric Acid powder? 7-10% w/v (soaking only); use 3-5% in U/S
Phosphoric? 10% soaking (2-5 min at a time)
U/S 4-5%

Combining acid with detergent will likely partially neutralize both, as the detergent is alkaline.

 

[lowwall]

Citric Acidv powder? 7-10% w/v (soaking only - 3-5% in U/S)

I assume w/v means weight/volume? So 7-10 grams of citric acid powder to 100 ml of water? No time limitations?

I use food grade citric acid powder for descaling coffee makers/tea kettle/CPAP humidifier since It's cheap, non toxic and doesn't smell. I have been eyeing it for my regs, but I was never sure of the concentration and didn't want to risk stripping any chrome.

 

[Pearlman]

Phosphoric acid is touted as a good rust remover.

Phosphoric acid is a strong acid that effectively removes rust by chemically converting it into a soluble compound, iron phosphate, which can then be easily rinsed away. It's commonly found in commercial rust removers or can be purchased as a concentrated solution and diluted for use

 

[rsingler]

I assume w/v means weight/volume? So 7-10 grams of citric acid powder to 100 ml of water? No time limitations?

Correct on weight/volume

Yes, time limitations, as with all acids. 5-10 Min between checks, short times with the concentrated solution. In the ultrasonic, even tho more dilute, I don't run more than 8 Min between checks.

And for a tidbit, once it's clean, if it's 316 stainless, you can passivate the steel with 25% citric acid at 60°C for 30 min. Don't try that with chromed brass, lol!

 

[missionmtb]

This happened to me until I was finally told to rinse my regulators attached to a cylinder while pressurized. I was rinsing them together without pressure assuming they were sealing, but this was allowing the DIN to unthread just a bit and allow water in (the pressure confirms a good seal and prevents unthreading). It was always just a tiny bit but over time it accumulated deposits like this. I feel like I was the only one in my dive circle that missed this despite *many* levels of training .

 

[happy-diver]

I mix my phosphoric like Professor Weirdo reciting the theme song too



Sometimes brush it on wash it off, sometimes in the microwave for a minute or two, brush it on, wash it off
or soak the stuff for a while or days for fused parts, best for fused parts where penetrating oil doesn't get in

I never use penetrating oil or that ridiculous put it in the freezer system

Hey car parts manifolds and stuff get 60-70-80 degrees C for a while

Maybe I'm Milton