Been using these for about a week. These do have a noise to them that i'm not quite sure of. Sometimes a soft "roar" and sometimes a slight "sizzle". The sounds happen's right after a new fill/re-fill and then seems to continue until I re-fill again.
Being new to all this I dont know "normal" sounds VS "o-no" sounds.
Thanks everyone!!
Being new to all this I dont know "normal" sounds VS "o-no" sounds.
Thanks everyone!!