Real ChatGPT answer · index seedSzQpzAbFBVwcompleteTelecom and utilities · water and gas utilitiesinformational
Which water filtration system options actually remove lead effectively according to recent independent testing data?
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Which water filtration system options actually remove lead effectively according to recent independent testing data?
3 real searches · 1 real-search pass
2025 independent testing water filters lead removal test results NSF 53 Consumer Reports lead reduction pitchers under sinkGoogle ↗
OBSERVEDComparison
2026 water filter lead removal independent laboratory testing lead reduction productsGoogle ↗
OBSERVEDComparison
NSF ANSI 53 lead reduction certified water filters database performance data lead reductionGoogle ↗
OBSERVEDReason
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 (3)
Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT3 real searches · gpt-6
2025 independent testing water filters lead removal test results NSF 53 Consumer Reports lead reduction pitchers under sink Google ↗
2026 water filter lead removal independent laboratory testing lead reduction products Google ↗
NSF ANSI 53 lead reduction certified water filters database performance data lead reduction Google ↗
- Reviewing performance of NSF/ANSI 53 certified water filters for lead removal · pmc.ncbi.nlm.nih.gov
- Reviewing performance of NSF/ANSI 53 certified water filters for lead removal · sciencedirect.com
- The Best Water Filters of 2026 · techgearlab.com
- Listing Category Search Page Results · info.nsf.org
- Consumer Tool for Identifying Point-of-Use and Pitcher Filters Certified to Reduce Lead in Drinking Water · epa.gov
- NSF certified lead-reduction product directory · info.nsf.org
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
2025 independent testing water filters lead removal test results NSF 53 Consumer Reports lead reduction pitchers under sink OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
2026 water filter lead removal independent laboratory testing lead reduction products OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
NSF ANSI 53 lead reduction certified water filters database performance data lead reduction OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 |