Restaurant build-out: the plumber hard-piped the 3-compartment sink with a P-trap straight into the branch feeding the grease interceptor, ran the ice machine drain and the prep sink directly into the sanitary line with traps, and set the walk-in cooler floor drain with a trap inside the box.

Multiple code violations. Do not expect to pass Friday.

1. 3-Compartment Sink → Grease Interceptor Branch (No Indirect Waste): Violation: IPC 802.1.1 / UPC 801.2. Food prep sinks require an indirect waste connection (air gap). Hard-piping directly into the GI branch line is prohibited. It allows grease/solids to bypass the interceptor's retention design and risks backflow contamination. Fix: Install a floor sink or hub drain with an air gap (min. 2x pipe diameter, 1" min) between the sink tailpiece and the GI inlet piping.

1. Ice Machine Drain → Sanitary (Direct Connection): Violation: IPC 802.1.1 / UPC 801.2. Ice machines are food equipment requiring an indirect waste (air gap). Direct connection risks sewage backup contaminating the ice supply. Fix: Route drain to a floor sink/hub drain with a proper air gap. Note: Condensate from the head unit may go direct if allowed by local amendment, but the bin drain never does.

1. Prep Sink → Sanitary (Direct Connection): Violation: IPC 802.1.1 / UPC 801.2. Prep sinks are food prep fixtures. Indirect waste (air gap) required.* Direct trapped connection is illegal.

1. Walk-In Cooler Floor Drain → Trap Inside Box: Violation: IPC 1002.4 / UPC 1007.1. Traps subject to freezing (inside a cooler/freezer) are prohibited. The trap seal will freeze and crack, or evaporate, losing the seal. Fix: Run the drain line untrapped from the cooler floor drain to a trapped floor sink/hub drain located in the conditioned kitchen space (indirect waste receptor). The receptor trap provides the seal.

Summary for Plumber: Move all four fixture drains to indirect waste receptors (floor sinks/hub drains) in the kitchen with code-compliant air gaps. Remove the trap from inside the walk-in. This requires re-piping.

Several issues will likely be flagged during inspection. Here’s what’s non-compliant per the International Plumbing Code (IPC) and typical health department requirements:

1. 3-compartment sink drain to grease interceptor without proper venting or indirect waste - The IPC § 704.1 requires indirect waste for fixtures discharging into grease interceptors unless the interceptor is designed for direct connection (rare). - A hard-piped P-trap discharging directly into the branch line feeding the grease interceptor is not allowed. The sink must discharge via an air break or air gap into a floor sink or receptor that then drains to the interceptor (IPC § 802.3.2). - Flagged: Direct connection violates indirect waste rule; risk of backflow and contamination.

1. Ice machine drain and prep sink connected directly to sanitary line - Ice machine drains must be indirect (IPC § 802.3.1) — typically via an air gap into a floor sink. Direct connection risks contaminating potable water or creating cross-connection hazards. - Prep sinks (if used for food washing) also typically require indirect waste per health codes (e.g., FDA Food Code § 5-203.11) to prevent backflow. - Flagged: Both are likely direct connections — violation of indirect waste requirements for food-related equipment.

1. *Walk-in cooler floor drain with trap inside the box - IPC § 1002.1 requires traps to be accessible for maintenance. A trap inside the cooler box is not accessible without entering the unit — violates accessibility. - Additionally, floor drains in walk-in coolers must discharge via indirect waste (air gap) to prevent contamination of stored food (IPC § 802.3.3; FDA Food Code § 5-203.12). - Flagged*: Trap not accessible; likely direct connection — both are code violations.

Summary of likely flags:

• All three fixtures likely lack required indirect waste (air gap/air break).
• Cooler drain trap is inaccessible.
• Grease interceptor connection may be improper if not designed for direct inlet.

Corrective action: Re-pipe all fixtures to discharge via air gap into accessible floor sinks, then drain to sanitary/grease interceptor per IPC Chapter 8. Consult a licensed plumber — this is not a DIY fix before Friday’s inspection. Word count: 248