A. I think you are referring to what the poskim mention, which is washing for nekiyos, the used to wash three times.
Mayim reshonim gets tamei. Unless its a revi’is. Therefore we wash twice.
I me toned he kelei thing to Pasul using wipes. Btw, according to some poskim, the water does not have to be in one place, if it’s all connected sort of zeria (doesn’t have to be with all dinim like by a Mikva) is good enough. So if all the water touches, it’s good enough.