Symptoms
- White streaks or spots on dark clothing
- Powdery residue felt on fabric
- Clothes feel stiff after washing
- Residue worse on cold-water cycles
Likely causes
- CommonUsing too much detergent for the load size or water hardnessExcess detergent doesn't fully rinse out, especially in efficient low-water HE machines.
- CommonCold water not fully dissolving powder detergentPowder detergents can leave undissolved granules in cold or short cycles.
- PossibleHard water reacting with detergentMinerals in hard water can combine with soap to form residue that clings to fabric.
- PossibleOverloading the machine, limiting rinse effectivenessToo many clothes can prevent thorough rinsing of all items.
What to do
- Reduce the amount of detergent used, following the line markings on the cap for your load size rather than filling it up.
- Switch to liquid detergent or pre-dissolve powder in warm water before adding if using cold cycles.
- Add an extra rinse cycle if your machine has that option, especially for large or heavily soiled loads.
- Reduce load size so water can circulate and rinse all items fully.
- If you have hard water, consider a detergent formulated for hard water or a water softener.
- Rewash affected clothes with no detergent, just water, to remove existing residue.
When to call a pro
This is typically a usage and water hardness issue rather than a repair; a plumber can test water hardness if residue persists despite adjustments.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.