I think we should consider these waterway channels for the opposite....
Not a means to flood the treasure...
Rather a means of water removal by siphion....
The five collecting to one makes no sense to me..the volume adds up incorrectly...
But the opposite of a means to increase volume for a siphion does....
Siphion is induced by gravity....matters not...underwater...underground....but my understanding is that a siphion cannot pull straight up...
