Problem in the sedimentation of meth hydrochloride salts

[ahmad999]

Hello
After completing the meth reduction, I filtered the liquid
Then I went to precipitate meth hydrochloride salts using hydrochloride gas.
Table salt mixed with sulfuric acid to produce gas
When the hose is put with liquid, the salts start to appear, but when the gas stops, they disappear as shown in the video, what is the reason?
Please help

 

[Hadiiiii]

Hello, did you fix the problem? I have the same problem.