Numatic Solution Tank or Outlet Leak

Water leaking from around or under the solution tank.

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Possible Causes

Damaged solution tank outlet seal, Cracked solution tank, Loose tank outlet fitting, Debris on tank sealing surfaces

How to Fix / Troubleshooting

Safety first: Unplug the machine and remove the tank.

  • Inspect tank: Check the tank for visible cracks, especially around the outlet and handle areas.
  • Check outlet seal: Examine the rubber seal or O-ring at the tank outlet. Replace if split, flattened, or hardened.
  • Clean mating surfaces: Wipe the tank base and machine connection point to remove grit that may prevent sealing.
  • Refit and test: Refill the tank and place it back on the machine. Observe for leaks before powering on.
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Repair Difficulty

Easy 2/5

Required Part

Solution Tank Outlet Seal
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