The question was asked recently, "we notice a lot of the crew hand watering fairways. Why can't you just turn up the time on the sprinklers?". This was a great question and I thought I would address it.
If we were to turn up the time on the sprinklers to address a dry spot, we would end up with wet spots in other areas. The irrigation we put out at night time addresses the majority condition of the particular area rather than the dry spots which may only be 5% of an area.
By going through and hand watering the localized dry spots, we can keep the fairways firm and fast which is a desirable condition from our management team to our regulars. It also helps conserve on water which we all know how valuable of a resource water is.