gotta be honest but a dresser in the closet with a black thing stickin out and an electrical cord isnt very dl.(it is kinda cool lookin though) That being said good luck the chi always needs more weed... also hope your neighbor dosn't know what your doin... the good news is 5 plants or under is a misdermeanor if no other priors, I wish you the best.
Sorry, also have you thought about removing the water pump and just filling your tote with water about all the way to half up the net pots, that way you dont have to worry about the timer and all that and eventually your roots will just grow right into the water and then all you got going is the airstone and everything is easy? just a thought, that has worked out great for me. The only concern would be the plastic totes sometimes bend with all that water weight so i double mine up