Quote Originally Posted by gerri
...I will add some MA tonight. Do you wear goggles and saftey gear when using it? I'm really scared of it.
You should wear safety glasses or a face shield and gloves (almost any will do), avoid breathing the fumes, and keep it away from other chemicals but it's nothing to be scared of. With those safety precautions and a healthy respect for strong acids, you'll be fine. You can also dilute it in some pool water in a bucket before adding it to the pool (always add acid to water, never the other way around), but I don't think that's necessary.