With this configuration, “run lengths” can be doubled because water flows into two “end feed” layouts. Note how the water flows freely from both ends of a broken line, keeping the laterals free of debris, as well as maintaining operation down stream f the break. Example shows laterals raised, as if PVC headers were laid in trenches.
With an end feed configuration, water flows from the supply header toward the exhaust header. Example shows laterals flush with the ground, using PVC supply and exhaust headers. Depending on zone flow, poly, Techline or Techline Blank tubing may be used in lieu of PVC. With Techline CV, a flush valve as pictured here, is not required. TLSOV or TLFIG8 would be substituted.