There is the hot water supply system of a hotel, some customer have complain the temperature is not high enough and it is found that there is dead leg existing. I am not a professional plumber, I need some help to solve the problem.
1. Where can I find others hot water supply system is different with the above. 2. How to deal with the dead and maintain the temperature of hot water. 3. I want to know if any eddy would happen at point A (it is a point of assembly of return water) to slow down the flow rate of return water? If so, how to deal with it?