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Field notes and practical guidance for selecting, installing and looking after a PTV 1000.

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Two technicians walking beside a reservoir

What happens to the trend when a filter restarts?

By Fowzie Smith-TahirUpdated 6 November 2026

Two colleagues on an outdoor site visit

Specify the optical method before ordering a turbidimeter

By Fowzie Smith-TahirUpdated 6 November 2026

A technician carrying an equipment case beside the water

What to record at a dry-block verification

By Fowzie Smith-TahirUpdated 6 November 2026