# Mr Water Geek
>
> Engineer-led water-filtration guidance and drinking-water science, written
> and spec-checked by Shashank Varma — a mechanical engineer with 9 years
> building water filtration at Kohler and hardware work at Apple.

## What this site is
Mr Water Geek explains what is in home tap water and how to evaluate filtration —
by chemistry, certification (NSF/ANSI), and category. We do not lab-test
products. Guidance is reader-funded; affiliate links are disclosed.

## Methodology
We match filtration technologies and certifications to contaminant types. Key
claims are sourced to primary references: EPA, CDC, NIH, NSF, ATSDR, and
peer-reviewed research.

## Author
Shashank Varma — Founder & Engineer. 9 years at Kohler (water filtration);
ex-Apple (hardware).

## Key pages
- Home: https://mrwatergeek.com/
- About & methodology: https://mrwatergeek.com/about/
- Free water quality report (by ZIP): https://mrwatergeek.com/water-quality/
- Topics: https://mrwatergeek.com/topics/

## Topics & guides
- Filters & Guides (121 guides): https://mrwatergeek.com/category/product-review/
  - Bottle & Hydration Reviews (7 guides): https://mrwatergeek.com/category/product-review/bottle-hydration-reviews/
  - Ionizer & Alkaline Reviews (18 guides): https://mrwatergeek.com/category/product-review/ionizer-alkaline-reviews/
  - Pool, Spa & Hot Tub Reviews (8 guides): https://mrwatergeek.com/category/product-review/pool-spa-reviews/
  - Water Filter Reviews (52 guides): https://mrwatergeek.com/category/product-review/water-filter-reviews/
  - Water Softener Reviews (31 guides): https://mrwatergeek.com/category/product-review/water-softener-reviews/
- Filtration Systems (220 guides): https://mrwatergeek.com/category/filtration-systems/
- Guides (25 guides): https://mrwatergeek.com/category/guides/
- Hydration and Wellness (80 guides): https://mrwatergeek.com/category/hydration-wellness/
- Pools, Spa & More (9 guides): https://mrwatergeek.com/category/pools-spa/
- Safety and Regulation (19 guides): https://mrwatergeek.com/category/safety-regulation/
- Uncategorized (5 guides): https://mrwatergeek.com/category/uncategorized/
- Water Science (57 guides): https://mrwatergeek.com/category/water-science/

Full content directory with summaries: https://mrwatergeek.com/llms-full.txt
Sitemap: https://mrwatergeek.com/wp-sitemap.xml

## Sources we cite
EPA, EWG (data only), NSF/ANSI, CDC, NIH, ATSDR, manufacturer specifications
and certification pages.