Day 4- 3/07/2012

pH testToday we have to make sure that our system is capable of being left alone for little over a week because we have to go home for spring break.  Some of the things that we wanted to do was check on the pH and make sure that there is enough water in the system to last. We decided to add some more water because we didn’t want it to dry out over break but not to much that it would drown the plants. After we added the water we checked the pH of the water again.  It was agian higher than when we left it, neither of us can figure out why.  So once again Cody added more pH down to get it back to the 7.0 that we are looking for.  Hopefully we can figure out why it keeps raising!