Fluval stratum volcanic soil - not clearing in tank

[carligraceee]

What I have always heard from knowledgeable people is that this soil is not meant to be washed and it's not possible to get it completely cleaned.

I am not saying it will be clean lol
I am just saying, rinsing it can help with the unrest when you put it in the water. All it is doing is washing off some of the excess dust. You won't clean dirt of course..