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Field notes

Short guides from our lab and field teams on boreholes, tanks, filters and reading results.

A scientist examining a small sample

Notes

Latest notes

Field note · 6 min read

Why Asaba boreholes stain your tiles orange

Iron in the ground, what it does in your pipes, and the cheapest honest fix.

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Field note · 5 min read

How to clean a storage tank properly

A step-by-step guide for the overhead tank, and when to retest.

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Quick tips

Pinned to the lab wall

  • SamplingRun the tap for two minutes before sampling
  • TanksClean overhead tanks every six months
  • BoreholesTest boreholes after any pump repair
  • SamplingKeep samples cool, never in the sun
  • FiltersChange carbon cartridges on time, not when they smell
  • WellsHarmattan dust settles in open wells; cover them

Mailing list

Seasonal reminders

Two messages a year: before the rains and before harmattan, with what to check and when.

Have a question we have not covered?

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