US water hardness and plumbing risk data for 155 cities - CC BY 4.0 - https://yohomefix.com/research/us-water-hardness-plumbing-risk
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Updated
Jul 23, 2026
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water-hardness
Here are 3 public repositories matching this topic...
4,941 Indian cities with average water TDS (ppm) and hardness tier classifications. Open data by OrangeDemon.
open-data dataset water-quality india tds groundwater india-data water-hardness hard-water india-water
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Updated
Jul 23, 2026
Detects limescale-driven pump wear from electrical current, days before it seizes. $50 smart plug, 100% native Home Assistant.
home-automation smart-home home-assistant predictive-maintenance water-hardness hard-water pump-monitoring
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Updated
Jul 24, 2026
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