Water Backflow | Stephen Fulkerson
HOLD-10-31-2023
Corrections Not Met
Plans Page P-101, Clouded Note @ assemblies states for DCVA for Fire and Domestic. Fire requires a DCDA, Double Check Detector Assembly.
States Max 100' from meter tap needs to show Max from TAP on Public Main to assembly, to include all rises and offsets.
Until letter from AHJ stating authorization to install a DCVA instead of an RPZA, has been submitted and connected to plans, A DCVA is not approved for Domestic Water. Domestic Water does not follow the 100' dictated in Water Criteria, so this will need to be addressed in the letter also.
Plans Submitted 10/30/2023.
HOLD-7-25-2023
PB23-10890
Corrections Required
Need Utility Plans. Need utility Plans to show where water meters are to be installed. Plans will need to show at minimum, an approved RPZA, Reduced Pressure Zone Assembly, to be installed at the point of delivery (meter), on Domestic. On private property, not in an easement or ROW. RPZA shall not be installed below grade and will require freeze protection.
Need Utility Plans to show at minimum, a DCDA, Double Check Detector Assembly, Fire, installed at point of delivery.
Need Utility Plans to show at minimum, a DCVA, Double Check Valve Assembly, Irrigation, at point of delivery.
Unless otherwise required, Backflow Prevention Assemblies are not to be inside the building when local code requires location to be at the (water meter) service connection.
FYI- Approved and Dedicated Reduced Pressure Zone Assembly (R.P.Z.A) or True Air Gap @ Point of Use on High Hazard appliances that include but are not limited to Encapsulated Water Filters, Combi Ovens, Garbage Disposals, Glasswashers/Warewashers/ Dishwashers with Automatic Chemical Injection, Steamers, Steam Tables, Hose Reels, Roof Hydrants (non-sanitary rated), Yard Hydrants, Chiller & Boiler Systems, Trash Chutes, Degreasers/Sanitizers (i.e. Soap Dispensers), Water Treatment Appliances (Water Softener, Reverse Osmosis). Dual Checks not approved for these applications.
§ 12.5-531 INSTALLATION REQUIREMENTS.
(1) Backflow prevention assemblies shall be installed in accordance with the plumbing code and this division. The assembly installer shall obtain the required plumbing permits prior to installation and shall have the assembly inspected by a certified cross-connection inspector and as required by the plumbing code.
(2) No part of a reduced pressure principle backflow prevention assembly shall be submerged in water or installed in a location subject to flooding. If a doublecheck valve assembly is installed in a vault, brass plugs shall be maintained in the test ports at all times and adequate drainage shall be provided.
(3) Assemblies shall be installed at the point of delivery of the water supply, before any branch in the line, and on private property located just inside the boundary of the cityโs right-of-way. An inspector may specify other areas for installation of the assembly.
(4) The assembly shall be protected from freezing and other severe weather conditions.
Once the corrections have been completed, please label what the revisions cover and submit corrected plan/drawing to your Planning and Development Department Plans Examiner or Plans Coordinator.
NOTE: Additional comments may result upon review of requested information.
Thank you,
Steve Fulkerson 817-392-8361 Stephen.Fulkerson@fortworthtexas.gov
Not Applied | | 11/09/2023