supposed to recycle the water and nutrients
 

I recently started my hydroponics system. (i'm doing the drip system.) I've got two questions. How often should I water the plant and am I supposed to recycle the water and nutrients that drips into my reservoir back into the plant?

With the drip system you can water continuous for large plants if you use grow rocks. If you don't then read reply below. Yes you recycle the same water and when you need to add more water mix a gallon at a time with the correct amount of nutrient mix if you don't have a ppm meter. (About one tablespoon per gallon of water for most mixes.) That way you can keep track of how much you are adding.