Hello!
My wife and I recently purchased a home with a pool. We both have no prior experience with pools but we have been going through pool school and aiming to maintain the pool ourselves.
We had a pool company open the pool a few days ago and everything seems to be running smoothly so far. The pool has pretty much cleared and we can see the bottom throughout.
As I was cleaning the skimmer I noticed a rubberized plug in one of the holes that maybe the pool company forgot to remove? I believe that is going to our main drain in the deep end as there is no other visible pipe at ground level or at the pad. There is only one skimmer and one return line. So only one pipe going into my pump. The pool was built in 1979 (vinyl liner and steal walls) which from what I have been reading it was common to have the main drain coming into the skimmer.
Is there a risk to damaging something if I remove the plug?
I have attached a picture of the skimmer.
Thanks!

My wife and I recently purchased a home with a pool. We both have no prior experience with pools but we have been going through pool school and aiming to maintain the pool ourselves.
We had a pool company open the pool a few days ago and everything seems to be running smoothly so far. The pool has pretty much cleared and we can see the bottom throughout.
As I was cleaning the skimmer I noticed a rubberized plug in one of the holes that maybe the pool company forgot to remove? I believe that is going to our main drain in the deep end as there is no other visible pipe at ground level or at the pad. There is only one skimmer and one return line. So only one pipe going into my pump. The pool was built in 1979 (vinyl liner and steal walls) which from what I have been reading it was common to have the main drain coming into the skimmer.
Is there a risk to damaging something if I remove the plug?
I have attached a picture of the skimmer.
Thanks!
