due to a dying swg, i put way too much salt in the system. Now i need to drain the pool. I see 2 lines feeding into pump, one is skimmer, the other is the spa main drain. So my problem is i do not have a separate line for the main drain. Is that common? Do pools with spas usually have this? Or do they have maybe 3 lines feeding the pump ( main drain + skimmer + spa)?
To drain my pool can I plug the skimmer hole ( i saw there are plugs for winterizing) then it should suck only from main drain. Would that be ok?