Two tricks for cleaning your reg:
1. When you start to clean you second stage in fresh water (just when you return from water to DC (Diving Centre) or to the boat, if it had pool with fresh water) - you have to stay connected it to the tank.
Then start to shake it strongly horizontally, when exaust valve(s) on the top, and mouthpiece at the bottom.
This will keep two dividends:
When you shaking - membrane will be pressed from water pressure or water depression (does not matter why, just bubbles should to go).
When bubbles goes from mouthpiece to exaust vale, it takes some water (like airlift) and cleaning inner space with more forces, and better.
When you have pressure in hose - it was impossible to pass water in hose. And also it will clean seat and valve more better.
2. When you try to disconnect 1st stage from tank - after closing valve do not drop the pressure less than 20bar. Then try to disconnect DIN or Yoke carefully from valve. It will make "psssst", and stops. Do not press purge button on 2nd stage after! You should stay pressure in the hoses.
When you make this step - you can loose HP o-ring, be carefully. Put it back to the sink.
Than close hole in the 1st stage by finger, and then put regulator to the fresh water and shake it storngly.
THAN shake it from water drops, remove finger, AND SLOWLY press purge button.
When pressure in the hoses will drop less than IP (setup pressure or Intemediate Pressure), you 1st stage will opening, and air starts to go from hoses, over regulator, over the filter to the out.
It allow you to get some dividents:
Your filter will be cleaned from any possible drops of water.
You filter will be cleaned from any rust particles from the tank.
And you be able to see, how it clean, when you will put you palm before air stream. All particles will stay on your wet palm (I hope you are freshed regulator before
)
And also that allow to prevent water ingress inside regulator when you will freshening it.
