Merrill's Product Catalog: Pitless Units, Kits, Adapters
  1. Measure distance from bottom of support plate to center of discharge ell, or use assembly as a measuring stick.
  2. Drill hole in casing, the same measured distance as above. Hole size should be same as discharge pipe size of kit
    (i.e. 1-1/4", 2" or 3") or smaller.
  3. Notch or mark top of casing directly above discharge hole.
  4. Clamp discharge fitting around casing to assure watertight seal around discharge hole.
  5. Attach pump and drop pipe to inner pitless assembly, apply Anti-Seize/Gasket Lube to spud gasket, plus slot and back edges of slide plates and lower into casing.
  6. Line up mark on support plate with notch cut in casing.
  7. Turn stainless steel adjusting nut counter-clockwise until spud gasket seals on inner wall of casing.
  8. Complete installation by installing watertight cap on top of well casing depending on state well code. SPK Adapter is now installed.
NOTE: When pulling pump or installing pump, make sure that the stainless steel adjusting nut on pitless adapter assembly is turned (clockwise) so the threaded rod is pulled up as far as possible.
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