FLECK 10227 - 4600/5600 SS Injector Screen

The FL10227 stainless steel injector screen is a small but essential filter that sits ahead of the injector nozzle on Fleck 4600 and 5600 control valves, stopping resin fines, grit and salt sediment from clogging the injector during brine draw and regeneration. WrekinWater stocks this low-cost part as one of the quickest fixes for a softener that has suddenly lost water pressure or stopped drawing brine.

Technical specifications

Symptoms that mean you need this part

• Noticeably reduced water pressure through the softener after regeneration
• The valve no longer draws brine from the salt tank during regeneration
• A gurgling or hissing noise coming from the injector housing
• Water usage on the meter suggests regeneration is happening but softening performance has dropped

Why it fails / why it matters

Every regeneration draws water through the injector to create the vacuum that pulls brine from the salt tank, and the injector screen's job is to stop resin fines, iron sediment or salt bridge debris from reaching the fine injector nozzle and blocking it. Over time this fine mesh screen traps enough debris that flow through it restricts, starving the injector of the water it needs and stopping brine draw or reducing overall flow through the valve.

Why buy this from WrekinWater

WrekinWater has served more than 50,000 customers over 15 years and stocks Pentair Fleck, Autotrol, Clack, Kinetico and other major brands, so a genuine FL10227 screen is always in stock for a same-day fix. As a family run company based in Bettisfield, Shropshire rated Excellent on Trustpilot, we know this is often the first part worth checking when a 4600 or 5600 valve loses pressure.

How to fit it

1. Turn off the water supply to the softener before starting.
2. Locate the injector cap, usually a small cap on the side or top of the valve body near the brine line connection.
3. Unscrew the injector cap and carefully withdraw the injector nozzle and screen assembly.
4. Remove the old screen and rinse or replace it with the new FL10227, checking the injector nozzle itself for blockages too.
5. Refit the screen and injector nozzle into the cap, then screw the cap back onto the valve body.
6. Restore the water supply and run a manual regeneration to confirm normal flow and brine draw are restored.