What are the most common cast iron plumbing issues flagged by structural inspectors in buildings constructed before nineteen seventy?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the most common cast iron plumbing issues flagged by structural inspectors in buildings constructed before nineteen seventy?
2 real searches · 1 real-search pass
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (2)
Classes come from the query-classifier (a local Laya model). 1 of 2 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT2 real searches · gpt-6
cast iron drain pipe deterioration common defects channel rot corrosion joints inspection pre 1970 buildings Google ↗
cast iron plumbing inspection defects structural damage sewer camera testing standards Google ↗
- Cast Iron Pipe Failure: Elements of a Forensic Investigation · ralphemoonphd.com
- Report on Condition Assessment Technology of Wastewater Collection Systems · nepis.epa.gov
- 2025-2027 LESOP Instructor Manual Ed 3.0 · trec.texas.gov
- Condition Assessment of Ferrous Water Transmission and Distribution Systems State of Technology Review Report · nepis.epa.gov
- Evaluation of Opportunities to Improve Structural Inspection Capabilities for Water Mains: Large Diameter Cast Iron Pipe · nepis.epa.gov
Queries
2 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
cast iron drain pipe deterioration common defects channel rot corrosion joints inspection pre 1970 buildings OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
cast iron plumbing inspection defects structural damage sewer camera testing standards OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |