This guide explains how to properly connect drainage pipes using common fittings such as wyes, elbows, and waterproof tape.
Measure twice, cut once. Confirm the entire layout of your pipe run and identify where every fitting or joint needs to go before making cuts.
Use a fine-tooth saw or sharp utility knife with a metal blade to make clean, square cuts.
Using a pipe coupler, assemble a connection without tape to verify everything fits correctly and lines up with the intended grade and direction.
Use 4" waterproof pipe tape. Start with at least one full wrap on the first pipe, then spiral evenly across the seam, ending with a full wrap on the second pipe. Use 8 total wraps for a secure seal, with an ending taped section of 8".
Determine the exact location and orientation of wyes or elbows, and cut your pipe accordingly to avoid forcing or bending.
Always dry fit these fittings first. Orientation matters, especially when multiple pipes are merging. Double-check angles and flow direction before applying tape.