The brine valve controls the draw and refill cycle on Fleck 9500 and 1600 commercial duplex softener valves, metering brine from the salt tank into the resin bed during regeneration. This genuine Pentair Fleck 18056-1 repair kit rebuilds that valve with the correct 1 GPM flow-rated internal components, resolving weak brine draws, poor regeneration and salt bridging caused by worn seals. A regular service item for commercial softener maintenance, in stock at WrekinWater.
Technical specifications
| Part number | 18056-1 |
| Compatible valves | Fleck 9500 (commercial duplex) with 1600 brine valve assembly |
| Flow rate | 1 GPM brine line flow control |
| Kit type | Internal seal and wear-component repair/rebuild kit |
| Position | Brine valve, mounted on the tank/valve brine line connection |
| Brand | Genuine Pentair Fleck |
Symptoms that mean you need this part
- Weak or incomplete brine draw during regeneration
- Salt bridging or wet, mushy salt sitting in the brine tank
- Softener regenerating but water hardness returning quickly afterwards
- Visible wear, cracking or leaking around the brine valve body
Why it fails / why it matters
The brine valve's internal seals and spacers are in near-constant contact with saturated brine solution, which is far harder on rubber and plastic components than the softened water passing through the rest of the valve. Salt is corrosive and abrasive in this concentration, so seals harden, swell or wear out faster here than almost anywhere else in the system, and once they do, the valve can't draw or refill brine correctly, cutting the regeneration cycle short.
Why buy this from WrekinWater
As specialists in Pentair Fleck commercial valves, WrekinWater stocks the service parts that keep 9500/1600 duplex softeners running rather than just the headline valve bodies, and getting the flow rate right on a brine valve kit matters - fit the wrong GPM rating and the regeneration timing goes off. Based in Bettisfield, Shropshire and rated Excellent on Trustpilot, with UK Company No. 11000488, for anyone maintaining commercial installations who needs the correct part first time.
How to fit it
- Shut off the water supply and put the valve into bypass before starting work.
- Isolate and disconnect the brine line tubing from the brine valve body.
- Remove the brine valve assembly from the control valve or brine tank fitting.
- Strip down the old assembly and replace the seals, spacers and worn internal components with those from the 18056-1 kit.
- Reassemble the brine valve, checking all components seat correctly and orientations match the original.
- Refit the assembly, reconnect the brine line, restore water supply and run a manual regeneration to confirm a proper brine draw.
Frequently Asked Questions
Unfortunately we are unable to accept returns on our Water Softener Parts So please confirm the correct part is ordered. If you have any doubt please feel free to call us prior to purchase for confirmation.
18056-1 - Fleck 9500/1600 Brine Valve repair kit - 1 GPM
