ok so im about to install my hot water shower.alittle confused though.can i connect the hot water from the thermastat housing or the plug on the intake manifold?i was going to go off the block underneath but there seems to be some tubing coming out to something.i think i see were for the cold water,aft the seawater pump.dont know if the ca models are diffrent but mine already t off into some other peice,not sure what it is.here is a pic of my themastat housing,can i use any of these outlets for the hot water?