The relay contol box on the left takes input from the thermostats and triggers the floor pumps to turn on and off.

Stephen held onto the round PEX fitting pieces by putting them on his fingers.

The radiant insulation has been pulled back so we could fish the dishwasher hot water line (left bay), and kitchen sink cold and hot lines (right bay) up through the floor.

By the end of the evening, Jeff had all of the water lines for the first floor run and connected at the manifold.