The chlorine solution shall stand in the well for a period of minimum _____hours or more
Vertical seepage can occur readily outside when ______ is left unsealed in the ground near the surface
The diameter of the well casing should be _____ sizes larger than the nominal diameter of the pump
In order to assure that grout will provide a complete seal it should be placed________
A well be required to have an annular grout seal thickness greater than ____ inches
Answered 0 of 35 (0%)
Save
Next Page »