Soaking and reporting help...

[Jenna376]

Hello All...
I have recently been remodeling and now my Phil leaves are covered with dust from sanding spackle and wallpaper glue. I put them in the sink and gave them a good rinse with the sprayer at a luke warm temperature and also allowed the water to run through for a couple minutes.
All of the dust from sanding the walls did not rinse off.
1. Is it ok to let water run through them like that?
2. Do i just carefully rub it off?
3. How do i get it out of the center since its crevesas that i cant freely wipdcant wipe?
4. They all have limp wrinkly leaves now too. Dehydrated maybe?
5. I have new ceramic pots for all of them. Should I wait to report them?
I tried to upload a picture too but got some type of error message

Thank you...