This one needs a licensed pro
Likely cause: a drain or sewer line restriction
When other fixtures are slow too, the problem is likely downstream of the toilet. Call a plumber.
Why this happens
HomeTips says persistent weak flushing may indicate a developing drain line blockage or a sewer line restriction, especially when the problem affects multiple fixtures. That is in the pipes beyond the toilet, not in the tank.
What to do right now
- Cut back on water use, especially laundry and long showers, until it is checked.
- Note which fixtures are slow or gurgle, and whether any back up into a tub or floor drain.
- Do not pour drain chemicals in. Tell the plumber about any you already used.
- Call a licensed plumber.
What to tell the plumber
- The toilet flushes weakly and other drains are slow or gurgle.
- Which fixtures are affected and where they are in the house.
- Whether any drain chemicals were used.
- The age of the home and the pipe material if you know it.
Build the full list: what to tell the plumber.
Start this troubleshooter over
References (every fact above comes from one of these pages)
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