need your help. I am pretty new to this and kind of got the pool from the previous owner. So I am just learning along the way.
Anyway, recently, we realized that the spa is not holding the water and it was draining quickly.
I did a quick search online and saw one of the youtube, it says the check valve might not working properly. So I took it apart (green circle) and there was a small debris on the gate. I cleaned that up and put that back in. The water seems to retain better but still draining slowly. The youtube mentioned there's another valve and showed something looks like the one in red circle. However, I couldn't figure out which way should the thing turn. Right now, the "off" is not facing either tube A or B. Can anyone let me know if the valve is in the right position or should it be moved to close A or B?