You could clean out a shop vac suck out each hose to figure out and match up each with zone. Still have to figure out supply and return of each. Maybe hoses are cut to length or bent differently may give clues. You may have to pull hoses from AH radiators to help identify supply from return.
There's most likely an engine loop as well. Good luck you got this .
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95 Monaco Crown Royale
M11 400hp, 4060 trans.
Aquahot, Generac Guardian7.5k
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