Cooling Hose diameter for 2008 Merc 496

[paulswagelock]

I plan to rig a temporary system to chemical flush my raw water side cooling system and heat exchanger. I want to remover the raw water inlet hose going into the power steering cooler and put my recirc pump on there. Anyone know what inside diameter that rubber hose is, 1"??
Then I want to remover the two heat exchanger outlet hoses to run returns back to my bucket. Again, anyone know the inside diameter of those hoses?

Thanks.