Once we know these heads, we will then subtract the suction head from the discharge head and the amount remaining will be the amount of head that the pump must be able to generate at the rated flow. Here is how it looks in a formula: System head = total discharge head - total suction head. H = hd - hs.
Observation Point. This well used path climbs a short, steep, wooded hillside to a viewpoint of Old Faithful and nearby features, then continues across the hill to Solitary Geyser, a bubbling pool in an open area of the forest.
Helpful Hints for Transit Levels. 1  When the objective lens is not in use, it should be covered with a lens cap to prevent damage to the equipment. 2  Detachable sunshades are useful in preventing glare and protecting the objective lens.  DO NOT lift your level by the telescope; always be sure to lift it by the base.