Karassik and McGuire state in their 2012 book,  p. 415,
The available energy that can be utilized to get the liquid through the suction piping and suction waterway of the pump into the impeller is thus the total suction head less the vapor pressure of the liquid at the pumping temperature
My question is: what is the suction piping and the suction waterway and what is the difference between the two?
 McGuire, J. T., Karassik, I. (2012). Centrifugal Pumps. United States: Springer US. https://www.google.com/books/edition/Centrifugal_Pumps/KEzjBwAAQBAJ?hl=en&gbpv=1&dq=%22suction+waterway%22+pump&pg=PA415&printsec=frontcover