The DROP valve provides a reliable and continuous water supply, according to the demand of the birds, but avoids too much water in the cup. Water spillage is, therefore, reduced to nil and the litter remains dry and friable providing healthier environmental conditions. Large diameter water pipe with outer couplings avoids restrictions to water flow. The reduced amount of water avoids scaling by the sediments in the water and the maintenance required is dramatically reduced. All components are made from plastics and stainless steel and all plastic parts are made from drinking water quality material. Assembly made easy with quick twist lock joints for both cups and drainage plugs. Sturdy design to withstand impact even from heavy birds. Version with antiperching winglets for transverse installation, with increased freedom of movement for the birds.
