Rico in Spanish means rich in English just if your talking about money. If your talking about food rico means it's delicious, good, etc. Example, esto huele rico mean this smell good or  que Rica la comida means like delicious food in English. Puerto Rico means Rich Port in Spanish.
Tankless or demand-type water heaters heat water directly without the use of a storage tank. Heat pump water heaters move heat from one place to another instead of generating heat directly for providing hot water. Solar water heaters use the sun's heat to provide hot water.
Check to be sure that the washer is in place on the inlet of the regulator. Remove white protective seal from the full oxygen tank valve. Slide the regulator over the top of the tank valve and place the two index pins into the two holes in the tank valve.Be sure that the two index pins properly fit into the holes. Turn the T screw handle clockwise until snug.Open the tank valve very slowly by turning the tank valve key one full turn counterclockwise.lide the regulator over the top of the tank valve and place the two index pins into the two holes in the tank valve. Be sure that the two index pins properly fit into the holes. Turn the T screw handle clockwise until snug.