Kohler Memoirs K-6918-0 Guide D'installation Et D'entretien page 4

Mark the Pipes - Bowl Side (cont.)
Firmly insert the gasket end of the inlet pipe into the water inlet,
pushing until it contacts the bowl.
Position a level or other straight edge across the back of the bowl.
Mark the inlet pipe at the back edge of the bowl using the level
as a guide.
Remove the inlet and outlet pipes.
1391898-2-A 4 Kohler Co.