Harvey Drain Backflow / Poor Drain Connection

Harvey softener drain line occasionally backs up, causing water to spill near the drain connection

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Possible Causes

Blocked standpipe or trap, Drain hose inserted too far, No air gap, Undersized drain line

How to Fix / Troubleshooting

Safety: Drain water may contain brine; protect nearby metal surfaces from corrosion.

  • Inspect drain connection: Ensure the Harvey drain hose discharges into an air gap or standpipe and is not sealed airtight.
  • Clear blockage: Clean the standpipe or trap of any debris or buildup.
  • Adjust hose depth: Do not insert the drain hose too far into the standpipe; leave an air gap to prevent siphoning and backflow.
  • Secure hose: Use clips or ties to keep the hose in position and prevent it from falling out.

Persistent drain issues may require a plumber to modify the waste connection to meet local regulations and Harvey guidelines.

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Repair Difficulty

Easy 2/5

Required Part

Harvey drain hose (installation adjustment)
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