# Reliance Trenchless Blog

Canonical: https://reliancetrenchless.com/en-CA/blog

Practical articles on pipe repair, product selection and project preparation.

- [Single-Size vs Multi-Size Pipe Plugs: Comparing Fit Ranges](https://reliancetrenchless.com/en-CA/blog/single-size-vs-multi-size-pipe-plugs): Compare SS 600 and MS 500-1000 catalogue entries, measured pipe bore and access dimensions. Learn which fit and pressure details need confirmation.
- [Pipe Plug vs Repair Packer: What Is the Difference?](https://reliancetrenchless.com/en-CA/blog/pipe-plug-vs-repair-packer): Compare Reliance pipe plugs and repair packers by task, bypass, pressure terminology and repair coverage, with NASSCO and HSE references.
- [Does Every Pipeline Joint Need Sealing? Evidence for a Repair Scope](https://reliancetrenchless.com/en-CA/blog/does-every-pipeline-joint-need-sealing): Use NASSCO guidance, EPA rehabilitation criteria and inspection research to scope joint sealing, separate leakage from wall damage and prepare measured records.