
Product Description
The Autotrol 1000221 refill flow control is a genuine-spec 0.14gpm flow button fitted into the brine valve assembly of Autotrol 367 and 368 series metered softener valves, where it meters how quickly water re-enters the brine tank after each regeneration. Get this wrong and you end up with a brine tank that overfills, underfills, or takes far longer than it should to refill, so matching the gpm rating exactly matters. Genuine Autotrol 1000221 refill controllers are in stock at WrekinWater.
Technical specifications
| OEM part number | 1000221 |
| Flow rate | 0.14gpm (approx. 1.25 litres/min) |
| Compatible valves | Autotrol 367 and 368 series metered valves |
| Function | Meters brine tank refill water volume/speed after regeneration |
| Location | Brine valve/refill assembly, item 16 on 604 and 606 exploded parts views |
| Brand | Autotrol (Pentair) |
Symptoms that mean you need this part
- Brine tank refilling too slowly or too quickly compared to normal
- Brine tank overflowing during or after regeneration
- Softener regenerating but water not softening properly, suggesting weak or over-diluted brine
- Refill flow control button missing, cracked, or clogged with sediment
Why it fails / why it matters
The refill flow control is a small calibrated orifice button that fixes the rate at which water enters the brine tank during the refill portion of the regeneration cycle, which in turn sets how much water is added and how strong the resulting brine solution is. If the button is worn, partially blocked with grit or scale, or swapped for the wrong gpm rating, the brine tank either overfills (risking spillage and weak brine) or underfills (leaving too little water to dissolve enough salt), and either fault shows up downstream as poor softening even though the valve appears to be regenerating normally.
Why buy this from WrekinWater
WrekinWater stocks the correct 0.14gpm 1000221 refill control specifically for the Autotrol 367 and 368 series, so there's no risk of fitting a button rated for the wrong valve and throwing off the brine tank refill volume. As a UK-registered water treatment parts specialist (Company No. 11000488) based in Bettisfield, Shropshire, and rated Excellent on Trustpilot, WrekinWater supplies genuine-spec Autotrol components to trade installers and DIY customers alike.
How to fit it
- Isolate the water softener and relieve any residual water pressure before starting work.
- Locate the brine valve/refill assembly on the control valve, referring to the exploded parts diagram for your specific 367 or 368 model.
- Remove the retaining components to access the refill flow control button, noting its orientation.
- Withdraw the old flow control button and inspect the housing and screen for grit, scale or debris, cleaning as needed.
- Fit the new Autotrol 1000221 0.14gpm refill control in the same orientation, and refit the retaining components.
- Restore water supply, run a manual regeneration cycle, and check that the brine tank refills to the correct level without overflowing.
Technical Resources
Frequently asked questions
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