What's the best way to water when using grow bags?

I picked up some Dirty Harry from Rushman. They are about a month old now and I did not realize how big these would get. They are getting so big. I don't have the room for a bunch of 5 gal buckets or pots so I ordered 5 gal grow bags. Buckets and pots have a lip on the bottom so the drain holes are not sitting directly on the floor which helps the water drain easier. I know grow bags have drain holes on the bottom but if they are sitting directly on the floor can they still drain properly? Is there a special technique to watering when using grow bags?

Watering is the same as any container. Best to aerate, and do it only when needed until there is some runoff. Some like to add extra drainage holes but I havent found the need too.

Also, i find that air pockets form around the sides where water later escapes through. Topping off with some soil every few weeks helps.

How to water grow bags:
Lightly.

Be careful that your soil mix has a LOT of drainage and the bags aren't sitting in trays- putting them up on a grate to ensure that runoff flows out freely is a good idea.