Rangemaster
Restricted Outlet Port / Scale Build-up
Garbage disposal runs but water drains very slowly even though pipes are clear.
Advertisements
Possible Causes
Limescale or hardened grease narrowing the Rangemaster outlet port, partially collapsed rubber outlet gasket, misaligned discharge elbow reducing bore
How to Fix / Troubleshooting
Safety first: Turn off power and place a bucket under the outlet.
- Remove discharge elbow: Detach the elbow from the disposal outlet and inspect the outlet port for scale or grease build-up.
- Clean outlet: Use a bottle brush and descaling solution suitable for metal/plastic to remove deposits. Rinse thoroughly.
- Inspect gasket: Replace any deformed or swollen rubber outlet gasket that may be restricting flow.
- Reassemble and test: Refit the elbow, ensuring correct alignment and full bore, then run water and operate the disposal to confirm improved drainage.
Advertisements
Repair Difficulty
Easy
2/5
Required Part
Disposal outlet port and gasket
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements