Quick Answer:
If the trap sits unusually high the tailpiece connection may be forcing a bad angle or restriction. First check tailpiece length and alignment and confirm the trap isn’t being forced upward at an angle. Often the fix is a small adjustment to the tailpiece or trap adapter so the slip-joints meet squarely, not a major part swap.
Why This Happens
- Tailpiece that is too long or positioned off-center pushes the trap up to meet the waste outlet at an awkward angle.
- A high sink strainer, new sink, or cabinet change after a remodel can leave the trap offset from the waste stub.
- Using the wrong trap adapter height or overtightening a nut can lift the trap out of its natural position.
- Corrosion or bent parts can change alignment and force the trap upward to make a seal.
Step-by-Step What to Do
Step 1: Prepare
- Place a bucket under the trap to catch water and have a towel ready.
- Wear gloves and eye protection if the trap looks dirty.
Step 2: Inspect the tailpiece
- Loosen the slip nut where the tailpiece meets the trap (don’t remove parts unnecessarily).
- Check tailpiece length and alignment: the tailpiece should drop straight into the trap inlet without forcing the trap up or to one side.
Step 3: Adjust, don’t force
- If the tailpiece is slightly long, try lowering it a little or repositioning the sink strainer nut so the tailpiece enters straight.
- If the tailpiece is angled, loosen connections and realign so the trap sits level. Ensure the trap isn’t being forced upward at an angle when you hand-tighten the nuts.
Step 4: Replace or add the right piece if needed
- If the tailpiece is too short or too long for a neat fit, use a correct-length tailpiece or an approved extension designed for sinks. A slip-joint trap with an adjustable trap arm can help.
- Reassemble the slip nuts hand-tight plus a small additional turn; do not over-tighten plastic nuts.
Step 5: Test
- Run water and watch for leaks and for the trap sitting squarely. Look for slow drains or gurgling.
- If you notice water noise or other symptoms, compare with related info like Trap causing gurgling noise and check alignment again.
If the problem appeared after changing fixtures or cabinets, the situation may match a remodel alignment issue—see Trap misaligned after remodel for typical causes and fixes.
What Not to Do
- Do not shorten parts randomly; cutting the wrong piece can make alignment worse.
- Do not force the trap into place or overtighten nuts to hide a misalignment — that can crack fittings or cause leaks.
- Do not rely on chemical drain cleaners to fix a mechanical alignment problem.
When to Call a Professional
- If the waste outlet in the wall or floor is badly offset and you need a new stub installed or the trap adapter location changed.
- If you find corroded cast-iron or brass parts that require specialty tools or welding.
- If you cannot get a watertight, level fit after basic adjustments or leak persists under normal tightening.
Safety Notes
- Always catch wastewater with a bucket and clean up spills to avoid slips.
- Avoid using power tools near plumbing unless you are trained; cutting plastic should be done carefully with the right tool and measurement.
- If you shut off water to work on nearby supply lines, know where the shutoffs are and how to turn the water back on slowly.
Common Homeowner Questions
- Can I just bend the tailpiece to fit? No — bending can crack or weaken the tailpiece and create leaks; adjust alignment or replace the part instead.
- Will a crooked trap still drain okay? It may drain, but a forced angle can trap debris, cause gurgling, and increase leak risk.
- Is this a DIY fix? Often yes for simple adjustments; call a pro if the outlet is misaligned or parts are damaged.