Accepted Private Sewer Lateral Lining
Section P3002 of the 2020 Florida Building Code Residential 7th edition (the Code) specifies allowable materials and pertinent specifications for building sewers. Sections P3010 and P3011 include allowable trenchless pipe rehabilitation methods and materials, which include fold and form PVC and pipe bursting with HDPE pipe. Currently, the Code does not specifically include cured-in-place pipe (CIPP) as an allowable method for private sewer lateral (PSL) rehabilitation.
Alternative materials, design, and methods
According to Section A104.11 of the Code Alternative materials, design, and methods of construction and equipment: “The provisions of this code are not intended to prevent the installation of any material or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material, design or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, not less than the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability, and safety. Where the alternative material, design or method of construction is not approved, the building official shall respond in writing, stating the reasons why the alternative was not approved.”
CIPP approved for PSL rehabilitation
Therefore, in accordance with Section A104.11, Pinellas County Utilities will approve the use of CIPP lining to rehabilitate the entire private sewer lateral subject to the following requirements and limitations:
- The existing private sewer lateral must not have any sags, deflections, or offset joints.
- A plumbing contractor certified or registered with Pinellas County Contractor Licensing Board (PCCLB) must submit an inspection video to Pinellas County Development Review Services (DRS) for review and approval of the use of CIPP.
- The following standards must be followed:
- ASTM F‐1216 – Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin‐Impregnated Tube
- ASTM D‐ 5813 ‐ Standard Specification for Cured‐in-Place Thermosetting Resin Sewer Pipe
- ASTM F1743 – Standard Practice for Rehabilitation of Existing Pipelines and Conduits by Pulled‐in‐Place Installation of Cured‐in‐Place Thermosetting Resin Pipe (CIPP)
- ASTM F‐2019 – Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Pulled in Place Installation of Glass Reinforced Plastic Cured‐in‐Place (GRP‐CIPP) Using the UV‐Light Curing Method
- Post‐installation inspection shall include a video survey using a closed‐circuit television (CCTV) camera using adequate lighting and showing the entire length of the private sewer lateral
- Post‐installation pressure testing shall be conducted in accordance with P2503.4. The pressure test shall include the transitions between the CIPP liner and the existing private sewer lateral to ensure water tightness through the entire liner.
- All post‐installation testing and inspection shall be submitted to Pinellas County DRS.