Advice on fixing a broken suction line

[BobF13]

Yes, I've put the multiport valve in an in-between position, opened the pump lid, and closed the valves on the suction lines. I'm confident water is not flowing thru the pump to the broken suction line.

I plugged the skimmers and wall drain with 1.5" threaded PVC plugs. The plugs fit tight, even if they are not a perfect seal, I can't imagine any leakage would be more than a trickle. But the water coming out of the broken line is a gush.

I have a vinyl liner, if I drain the pool level down below the skimmers, wall drain, and return jets that would have to stop the water flow to the broken suction line, right??

[PoolDoc]

. . . IF the break in the pipe is above the water level in the pool,

AND the pool is ONLY source for water in that line,
AND there is no backflow or siphon from another location,
THEN the water flow will stop.

But I haven't seen your piping, the hole, or your pool . . . so I don't know any of that. And I've learned that customers and pool owners frequently omit critical information because they don't recognize it as critical, or sometimes for other reasons.

That's why I mentioned detailed photographs.