We are trying to close our pool for the first time, did a lot of homework and read many posts here too.
There are still some questions that we are not sure about. Please please spend 2 minutes and help us out!
1) We read about the need to close the main drain valve with a positive sealing valve (like a Jandy valve). We have a Hayward Dial-A-Flo 3-way valve (please see photo) - Is it a positive sealing one for the purposes of locking the air column for the main drain?
2) The second question relates to the first one. We have 2 skimmer lines and 1 main drain line. The MD line shares the same valve (in question 1) with 1 of the skimmer line. (top value in the photo) After we blow the MD line, I believe I would have to lock it by pointing the handle to the opposite port. This setting would close the MD line but OPEN the skimmer line. Since water was lowered to be below the skimmers and no water could get inside the skimmer lines - opening the skimmer line is okay, correct?
In fact it is not really open since it would be sort of locked in between by the MD value and the other skimmer valve, which I would close by again pointing the dialer handle to the opposite direction.
Would the above valve setting be okay for winterization? Please advice.
(note valve positions in the photo are just random positions - not the ones mentioned above).