My town has a watering restriction that I only water every 2 days on odd dates of gthe week (e.g. June 1,3,5, etc). My Richdel 446PRI has the function of watering every 2 days but I don't understand how to get it to have each 2nd day to be an odd day. I'll need to reset it each month with 31 days since in those cases there will be two odd days in a row. Any ideas? Thanks Brian