I have a question about refilling echo e cartos. I used a syringe to fill the 1st time, let it sit, and made sure it was completely saturated. Is it appropriate to top off when needed by dripping into the polyfil from the top like a regular carto, or should I continue to use a syringe for refilling?
I've been using these since they first cam available and topping off does not hurt a thing. I do it all the time. Just take it off the battery first.