I have a Hayward sp 1070 skimmer. Since I have owned the pool there has never been a weir door installed. Do I need one?
I have also attached a pic of the bottom of the skimmer. Its hard to make out in the picture but one of the holes is plugged with a threaded plug. Is this where my main drain is plumbed to? My main drain has never had any suction. Should I unscrew that plug to give myself some main drain suction? If so, do i need the Float Valve Assembly (I believe this is the flying saucer looking thing) that is listed here?
http://www.poolcenter.com/parts_skimmer ... sp1070.htm