Hello everyone. I'm going away of vacation for 7 days and I need to keep my three plants watered ( 2 1/2 gallon plastic pots ). So I bought 2 micro irrigation pumps with timer. It is a dripper system. The problem is the dripper stakes only wet one spot in the 2 1/2 gallon pots. What is the bare minimum amount of water I can use to keep them going? will this work?