Features of ball valve typed nipple drinking trough:
  High sensitivity
  Fast take-down, easy cleaning, no need for glue and bonding              

  Imported good stainless steel, wear resistant, poly resin, APS, durable, available for 20 years
  Low water pressure, scientic water flow, applicable for chicken , hen, ducks in cage or not.
  Practical, inexpensive, NC, and equal to imported products, costs only accounting for 1/3 of the imported ones.
  None water seepage guarantee dry chicken manure. 
  Sanitory, clean water seeled pipes prevent possible water-born disesses.
  It occupies little area, increasing breeding space.