What should I do if my toilet won't flush but is not clogged?

If your toilet won’t flush and there’s no visible clog, the problem is usually in the tank or water supply. Check these quick fixes first.

• Lift the lid: the tank should fill to the marked water line.
• Verify the shut‑off valve is fully open.
• Ensure the handle/lever, chain, and flapper are connected and sealing.
• If the fill valve is noisy or slow, it may need adjustment or replacement.
• In Tucson’s hard water, mineral buildup can block rim holes; a pro can descale them safely.

Updated: 2025-12-31 00:00:00

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