going away or 10 days need suggestions!

Whats up everyone? So this Friday I am going away on a business trip for 10 days and I was hoping someone could give me suggestions on what I should do with the watering of my pants. I currently have 13 plants that are about 3.5 weeks into flowering that are growing in soil. I need an automatic system to deliver the appropriate amount of water per day for my ladies. I thought about a cheap diy way to solve this problem but i was just wondering if anyone has thought about this before and have found an easy way to make it work. Any suggestions would be great!

I would recommend the "reliable friend" technique.

Anything you build to disperse a set amount of water over a given amount of time will always run the risk of dumping all its water at once, or simply malfunctioning and killing your plants.