Astracast Shared Supply or Flow Restriction Interaction

Astracast disposal causes a noticeable drop in water pressure at the kitchen tap when running.

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Possible Causes

Shared shutoff valve partially closed, Debris in aerator reacting to vibration, Undersized supply line to kitchen, Loose faucet mounting transmitting vibration

How to Fix / Troubleshooting

Safety First: Turn OFF power to the disposal before working under the sink.

  • Step 1 – Check shutoff valves: Ensure hot and cold shutoff valves under the sink are fully open.
  • Step 2 – Clean aerator: Remove and clean the faucet aerator; debris can shift with vibration.
  • Step 3 – Inspect supply lines: Verify that flexible hoses are not kinked or pinched by the Astracast unit or plumbing.
  • Step 4 – Secure faucet: Tighten faucet mounting nuts to reduce vibration-induced flow changes.

Warning: If water pressure issues persist throughout the home, consult a plumber; it is not caused by the disposal.

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Repair Difficulty

Very Easy 1/5
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