The normal overflow water and cooling water from your tank should be able to go down the drain without causing any environmental problems. You will not be able to do this though if any of the material you have been cutting with your waterjet is considered hazardous.

All WARDJet waterjet systems are provided with a 100-micron filter system to remove most of the solids that overflow into the drain from the waterjet. The cooling water from the intensifier would be coming from the pump and could flow down the drain or you could install a chiller and run a closed loop system. Care must be taken that no solids should go down the drain.

The used abrasive can be removed from the tank either using an abrasive removal and recycling system, of which WARDJet holds the patents for - see our web site and look up the WARD Pro Abrasive Recycling Systems, a removal only system, or by shoveling it out and into the dumpster.