10" wound cartridge 25 microns Aquapro, ref. PR-SWS-10-25

10" wound cartridge, 25 microns

Mechanical prefilter cartridge consisting of polypropylene thread wound around a central core, in standard 10" format, filtration rating 25 microns.

Aquapro reference PR-SWS-10-25.

The wound design: handling the load

The wound thread forms a mesh whose density decreases from inside to outside. Large particles are stopped at the surface, finer ones progressively deeper in the core.

This gives the wound cartridge its main characteristic: high retention capacity before clogging. At equal rating, it handles more material than a surface media before flow drops.

Polypropylene is inert, binder-free, and compatible with cold drinking water.

The 25 microns: the most open rating

25 microns is the widest rating in the range. It stops sand, fine gravel, rust particles and pipe debris, without loading quickly.

Applications:

• well, borehole or tank water, naturally laden
• after network work, when pipes release their deposits
• old network in cast iron or galvanised steel
• first stage of a multi-stage chain, upstream of a 5 or 1 micron
• pump or meter protection, where the goal is to stop coarse material without restricting flow

On a drinking water line, a 25 micron alone lets too much fine material through: it then works upstream of a tighter rating.

Capacity versus fineness

An open rating lasts long but retains little fine material. A tight rating retains much but clogs quickly.

The 25 microns is deliberately positioned on the capacity side. It is the right choice when the priority is to last the season without intervention, or to prevent a fine prefilter from clogging in two weeks.

Position in the wound range: 25 microns at the head of the line, 1 micron for finishing.

What it protects

• fine cartridges, 5 or 1 micron, which would last only days without it
• carbon cartridges, whose inlet face clogs quickly
• reverse osmosis membranes
• softener valves, solenoid valves and fittings

Replacement

Replace at flow loss, not on schedule.

• mains water, first stage: 6 months indicative
• well water or after work: a few weeks to a few months
• network purging itself: check visually from the first week

A transparent filter housing allows visual inspection: the cartridge browning signals replacement before pressure drops.

Installation

Insert in the direction of flow, check the presence and condition of the housing O-ring, tighten with a wrench without forcing and bleed air before returning to service.

An isolation valve upstream avoids a full shutdown at each cartridge change.