Yep - too many Y-valves.
Pump straight into the holding tank. Set up the holding tank so that it can be pumped out, or if sufficiently offshore, macerated. Or use a gravity feed.
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ISPA Yachtmaster Offshore Instructor Evaluator
CYA Advanced Cruising Instructor
IYT Yachtmaster Coastal Instructor
As I sail, I praise God, and care not. (Luke Foxe)
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