DCVA Installation Guide

This Document serves as a guide for the installation of an DCVA inside the boundary of Water District #20.  All installations must be inspected and approved by the Districts Cross-Connection Control Specialist. Please contact  the District within 2 business days to schedule an inspection.

  • Assembly shall be installed on the customers side of the meter prior to any branch or tee on the service line.

  • A DCVA shall be installed in the orientation for which it is approved.

  • Install Assembly according to the manufacturers specifications.

  • Assembly must be installed in an enclosure (In ground or above ground).

  • Water District #20 highly recommends freeze protection. (Insulation or padded wraps

  • Installed Assembly shall be rigid and stable

  • Installed Assembly should be easily accessible for testing and maintenance.

  • Assemblies greater than 2 1/2" shall be supported to protect flange from damage.

8:00 Am to 4:30 Pm

Phone: (206) 243-3990

Fax:     (206) 244-7514

Email: Kcwd20@Kcwd20.com

© 2015 King County Water District 20.