Glue PVC Drain, Waste, and Vent Pipe

A. Finished-Project Specification

Quantity: one PVC DWV branch matching the approved drawing's pipe size, fitting pattern, flow direction, slope, vent relationship, and cleanout access, permanently solvent-welded, supported, and tested.

B. Component Schedule

Component	Quantity	Material	Finished Size	Preparation
Branch pipe sections	Per approved drawing	DWV-rated PVC	Per drawing; cut length calculated from fitting-centerline dimension minus actual socket depths	Cut square, deburred, chamfered, cleaned, and labeled per Chapter 3
DWV fittings (bends, wyes, tees, adapters, cleanout fittings)	Per approved drawing	DWV-rated PVC	Sizes per drawing	Dry-fit for direction and fit before priming
Cleanout plug or fitting	Per approved drawing	DWV-rated PVC or listed cleanout component	Per drawing	Installed to remain accessible after concealment
Pipe supports and hangers	Per approved drawing and code-required spacing	Listed for the pipe material and size	Per manufacturer and code spacing	Installed without flattening or back-pitching the pipe
Test caps or plugs	As required to isolate the branch for testing	Listed for DWV test service	Matched to branch termination sizes	Installed after final joint and before test

C. Material Takeoff

• Pipe stock: DWV-rated PVC pipe in the sizes and total footage required by the approved drawing, plus a waste allowance for cutting and dry-fit trial.
• Fittings: the exact bends, wyes, tees, adapters, and cleanout components listed on the approved drawing; no substitutions.
• Primer and cement: one matched, within-date, compatible primer and solvent-cement set sized to the total joint count and pipe diameters in the branch.
• Supports: hangers or supports sufficient to meet the code-required spacing for the branch's pipe size over its full run.
• Documentation: one DWV Assembly and Test Worksheet, plus photographs of the dry-fit, alignment marks, completed joints, supports, and test result.

D. Reference Conventions

Use the branch reference elevation and flow direction established on the approved drawing for every measurement. Establish a reference end for each pipe section, measure fitting socket depths on the actual fittings being used, and mark alignment lines across every dry-fit joint before disassembly.

E. Acceptance Standards

Check	Standard
Fitting pattern	Matches the approved drawing exactly; no substituted fitting type or arrangement
Pipe length and insertion	Each pipe fully inserted to the fitting socket shoulder; alignment marks returned to their dry-fit position
Slope	Matches the specified slope from the approved drawing across the full branch length, verified with a level
Fitting direction	Every drainage fitting rotated to the approved direction with the required sweep maintained
Primer and cement coverage	Complete, uniform coverage on every joint with no dry or skipped area; no excess cement pooling inside the pipe
Supports	Installed at the specified spacing without flattening, back-pitching, or stressing the pipe
Cleanout access	Maintained and accessible after all supports and protection are installed
Leak or water test	Passes the approved test method and duration with no observed leakage at any joint

F. Drawing Review and Material Preparation

1. Review the approved DWV drawing, pipe size, fitting types, flow direction, slope, vent relationship, cleanout access, support points, and test procedure. Record the branch identification and drawing reference on the worksheet before cutting any pipe.
2. Confirm that all pipe and fittings are compatible DWV products and are within storage, temperature, and condition limits. Reject any component showing UV damage, deformation, contamination, or an incompatible pressure class.

G. Work-Area Preparation and Product Inspection

1. Provide required ventilation and chemical-resistant work protection. Confirm the work area meets the primer and cement product-label ventilation requirement before opening any container.
2. Inspect primer, solvent cement, applicators, and product dates. Reject any product past its stated shelf life or showing separation, thickening, or contamination.

H. Layout, Measurement, and Preparation

1. Establish the branch reference elevation, flow direction, fitting centerlines, and support locations. Mark these references on the framing or work surface before cutting pipe.
2. Measure pipe lengths using actual fitting socket depths and the approved allowance method. Calculate each cut length from the fitting-centerline dimension minus the measured socket depths at both ends.
3. Cut, deburr, chamfer, clean, and label each pipe section. Follow the Chapter 3 cutting and preparation procedure for every section and label each one by position in the branch.

I. Dry-Fit and Alignment

1. Dry-assemble the entire branch without forcing fittings or damaging sockets. Confirm every pipe reaches full insertion depth without cement.
2. Rotate drainage fittings to the approved direction and maintain required sweep. Confirm flow direction matches the approved drawing at every fitting.
3. Establish the specified slope using supports or temporary blocking. Verify the slope with a level across the full branch length before marking alignment.
4. Mark pipe-to-fitting alignment lines across every joint. Use a continuous felt-tip line across each joint so the cemented joint can be returned to the identical position.

J. Priming, Cementing, and Permanent Assembly

1. Disassemble one joint at a time while preserving the dry-fit sequence. Work in an order that keeps every remaining joint accessible for tools and inspection.
2. Apply primer to the fitting socket and pipe end where required by the adopted system. Cover the full mating surface without leaving dry or skipped areas.
3. Apply solvent cement uniformly using the manufacturer-controlled sequence and coverage. Apply to both the pipe end and fitting socket in the order and thickness stated by the product instructions.
4. Insert the pipe fully while rotating only as permitted to align the reference marks. Push straight in to the socket shoulder, then rotate only the amount needed to return the marks to alignment.
5. Hold the joint together for the required period to prevent push-out. Support the joint by hand or brace until initial set has occurred.
6. Remove excess cement without disturbing the joint. Wipe the exterior bead only; do not reinsert or rotate the pipe after the hold period has started.
7. Repeat the procedure in an order that preserves access and alignment. Continue joint by joint until the full branch is permanently assembled.

K. Support, Cure, and Testing

1. Install permanent supports without flattening, back-pitching, or stressing the pipe. Space supports according to the approved drawing and code requirement for the pipe size.
2. Maintain cleanout access and protect open pipe ends from debris. Cap or cover every open termination before leaving the work area unattended.
3. Allow the assembly to cure for the manufacturer-controlled time based on pipe size, temperature, humidity, and test conditions. Confirm the cure time from the product's published table for the actual field conditions before testing.
4. Inspect joint insertion, alignment, slope, fitting direction, supports, primer or cement coverage, and push-out. Complete this inspection before applying the test.
5. Complete the approved DWV leak or water test under required supervision. Follow the test method, duration, and observation points specified for the adopted system.
6. Cut out and rebuild failed joints; do not smear solvent cement or sealant over a leaking joint. Remove the affected section back to sound pipe and rejoin using new fittings and full preparation.
7. Document the assembly and test before concealment. Complete every field on the DWV Assembly and Test Worksheet, including photographs of joints and supports.