Visible particles · Point-of-entry or point-of-use
Particulate pre-filter
A physical filter for particles above its rated size, considered only after the cause of discolouration or debris has been investigated.
What it's for
- capturing visible particles as part of an appropriate setup
- protecting downstream equipment where specified
Key attributes
- Primary job
- Visible particles
- Installation
- Whole-home
- Professional installation
- Usually required
What to avoid or check
- Using a filter to mask an unresolved pipe or mains problem
- Assuming particle filtration changes dissolved substances
Safety notes
Contact the water company first for a supply issue; use a qualified plumber when the problem may be within the property.
Source notes
What the source signal means here
The Drinking Water Inspectorate advises investigating discolouration or particles with the water company or a plumber and describes filtration only as a possible temporary aid in some cases.
Sources
- Domestic water filters and softeners — Drinking Water Inspectorate Checked 2026-08-31
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