I. Design concepts: (See Figure 1)

  1. Water tight inside and outside Power & Machinery
  2. Manhole or other covers tight to prevent contamination with 2" raised curb
  3. Overflow with check valve
  4. Initial roof-off diverted from cistern as roof dirt is washed off
  5. Inlet pipe near the top with splash pan below or a force breaker at bottom so that floor settlements are not disturbed. No data on which is more effective.
  6. Cleanout outlet pipe to pump located in small sump area with floor sloping to sump.
  7. Placed below ground to prevent freezing
  8. Water pipe to houe from floating inlet or 4" off bottom

Publication Date


Publication Number