How to Clean Mineral Deposits From a Showerhead

Mineral deposits clog showerheads faster than you'd think, especially in hard-water areas. You'll notice the spray pattern gets weak or uneven—some holes spray fine while others barely dribble. The culprit is usually calcium, lime, or magnesium deposits left behind as water evaporates. The good news is you don't need to replace the head. Most deposits come off with household supplies and a little soaking time. A working showerhead with good pressure makes every shower better, and this fix takes less than an afternoon. You have two paths here: soak-and-brush with vinegar for light to moderate buildup, or use a commercial descaler for heavy mineral crust. Both work. The vinegar method costs almost nothing and uses stuff you probably have. Either way, the key is letting the acid do the work while you sleep or work—don't just spray and scrub.

1. Gently release the head. Turn the showerhead counterclockwise by hand. Most unscrew easily. If it's stuck tight, wrap a cloth around it for grip and turn gently—don't force it or you'll strip the threads. If it won't budge, apply some penetrating oil and wait 10 minutes, then try again.
2. Choose your acid wisely. Use a cup, bowl, or ziplock bag large enough to submerge the entire showerhead. Pour in white vinegar (for light to moderate deposits) or a commercial descaler like CLR (for heavy buildup). Vinegar is milder and safe for all finishes; CLR is stronger but requires better ventilation and careful handling.
3. Let the acid work. Place the showerhead face-down in the vinegar or descaler so all the spray holes are covered. If using a bag, pour liquid in, seal it loosely, and tape it to the showerhead in the sink or tub. Let it soak for 1-2 hours with vinegar, or follow the package time for commercial descaler (usually 20-30 minutes).
4. Attack the loosened crud. After soaking, take the showerhead out and use an old toothbrush to gently scrub away loosened mineral deposits. Pay special attention to the spray holes—work the brush bristles into each hole to clear the openings. Scrub the face, threaded collar, and any exposed crevices.
5. Flush it clean. Hold the showerhead under the tap and rinse away loosened deposits and acid residue. Spray water through the face into a sink to flush holes from the inside out. Keep rinsing until the water runs clear and you don't smell vinegar or descaler.
6. Unclog the holdouts. If individual spray holes are still partially blocked, straighten a paperclip and gently poke it into each clogged hole. Wiggle it slightly to dislodge deposits, but don't force it—you can damage the internal structure. Rinse again after clearing.
7. Reattach the clean head. Thread the showerhead back onto the shower arm by hand. Turn clockwise until snug, then tighten another quarter-turn with your hand for a secure fit. Don't use a wrench—hand-tight is enough. Check that it's not leaking by running water for 10 seconds.
8. Verify the restoration. Turn on the shower and check that water sprays evenly from all holes. The pressure should feel noticeably stronger than before. If one or two holes still look weak, the showerhead may come out again for another quick soak, or you may have a calcium layer inside the showerhead that needs a longer soak or stronger acid.