Helping a friend with his pool. All blown out and clear - except the main drain and one skimmer.
Skimmer in deep end has both openings plumbed - one to the pump/and the other appears to be tied to the main drain.
Shallow end skimmer is plumbed to pump and believe equalized to deep end skimmer.
How do I blow these out?
Tried blowing from the pump and skimmer at the same time and no bubbles from the main drain.
Plumbed like fig 1 I believe