Identify the receiving system.
Ask the responsible provider to establish what an existing pipe serves using reliable records and any needed assessment.
Patio Covers · Carlsborg, Washington
Patio covers in Carlsborg add a new roof-water source. Before choosing the easiest downspout connection, have the provider identify whether the proposed receiving pipe is storm drainage or the sanitary side sewer.
A cover gutter should not be connected on the assumption that every underground pipe carries rainwater. Use the actual drainage and sewer records, then ask the responsible designer and County to establish an appropriate roof-water arrangement.

Share the intended cover dimensions and available drainage and sanitary-sewer records. Review the complete site-specific proposal before construction.
Choose a callback time if you want help with a more detailed estimate, or send the request without one.
Patio cover installation
Show the cover roof, gutter and intended receiving route on the site sketch. Keep an unidentified pipe marked as unresolved until the provider establishes its function and the proposed connection is reviewed. Price any needed drainage work separately from the acrylic roof so the starting cover range is not mistaken for a complete site solution.
Ask the responsible provider to establish what an existing pipe serves using reliable records and any needed assessment.
Include the added roof area, gutter outlet and receiving location with the cover proposal.
Have the designer and County address any drainage change, and keep that work in the final written price.
Before work begins
Confirm building and drainage review for the actual site with County DCD and Public Works. The selected size does not approve the receiving connection.
The initial acrylic-cover range is not a drainage design or connection authorization.
The County agreement excludes roof stormwater from sanitary collection. Have the responsible provider establish an appropriate reviewed route.
Use actual records and assessment to identify the system before proposing a connection.
Request a separately assessed scope for drainage and associated site work.