- FL = Flanged
- GR = Grooved
Water Quality Maximum Flow Rates
Good Water Quality: Municipal water supply or well water from a clean aquifer with no sand, iron or manganese.
Average Water Quality: Wells with small amounts of sand (< 2 ppm) or clean surface water which includes lakes, ponds, reservoirs and canals.
Poor Water Quality: Well water from a poor quality aquifer (> 2 ppm) or surface water in hot climates with increased biological growth and no chemical treatment which includes lakes, ponds, reservoirs and canals.
Very Poor Water Quality: Well water with greater than 10 ppm of sand including rivers, muddy canals, lakes and ponds with severe run off deposits and raw municipal wastewater. Greater than 3 ppm Sand or Silt: May require a pre-filter such as a hydrocyclone.
