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Spent the evening installing an automatic watering system for my wife's hanging baskets. The system is very flexible in how long you want to make each part of the system to be. This is intended to be a drip irrigation system where water slowly comes out over a period of time. Since hanging baskets do not need a ton of water, I only set this to run for about 10 minutes a day, morning and evening.
For larger floor pots, be sure you don't overwater if you are doing this near a doorway. The puddles can get a bit much.
Also, watch out for freeze warnings! The ice will pop the tips off the system if left to the deep freeze. Whoops.