Unscrewing a shower drain is a common maintenance task when you need to clear deep clogs, replace a damaged drain, or clean mineral buildup. While it may seem simple, many drains become stuck over time due to corrosion, hardened plumber’s putty, or soap residue.
This guide explains step-by-step how to unscrew a shower drain safely without damaging your shower floor — suitable for both traditional and modern systems like Global MoonShower installations.
Before you start, determine what kind of drain you’re dealing with.
| Drain Type | How to Recognize | Unscrewing Method |
|---|---|---|
| Screw-in drain | Crossbars or notches inside the drain opening | Turn counterclockwise with pliers or a drain wrench |
| Snap-in drain | No visible screws, clips into place | Pry upward (does not unscrew) |
| Compression drain | Retaining ring or locking nut inside | Loosen inner nut with pliers |
| Caulked drain | Sealed with plumber’s putty or silicone | Cut seal, then twist out |
| Linear drain | Long rectangular grate | Lift grate first, then unscrew housing if needed |
If you can see crossbars or two small notches inside the drain, you have a screw-in type — this is the most common and the one you can unscrew directly.
| Tool / Material | Purpose |
|---|---|
| Adjustable pliers or channel-lock wrench | To grip and twist the drain |
| Drain removal wrench (optional) | Fits into crossbars for more torque |
| Flathead screwdriver | Remove screws or loosen edges |
| Utility knife | Cut through old caulk or sealant |
| White vinegar or penetrating oil | Loosens rust or mineral buildup |
| Hair dryer (low heat) | Softens old putty for easier turning |
| Rubber gloves | Protect your hands and improve grip |
| Towel or cloth | Protects the shower surface |
Tip: Always place a towel around the drain to prevent scratches on acrylic or metal finishes.
For screw-on covers: unscrew the screws using a Phillips screwdriver.
For snap-in covers: insert a flathead screwdriver under the edge and gently pry upward.
Set the cover aside on a towel.
Now you should see the actual drain body with crossbars inside.
Use a utility knife to cut through any visible caulk or silicone around the edge of the drain flange.
Spray or pour a little vinegar or penetrating oil around the drain edges.
Wait 10–15 minutes to allow it to dissolve corrosion or hardened residue.
If it’s still stubborn, warm the area gently with a hair dryer on low heat to soften old putty.
Place the tips of pliers into the crossbars inside the drain.
Open them slightly so they rest securely in the slots.
Alternatively, insert a drain wrench or drain key tool for a tighter grip.
Turn the tool counterclockwise (to the left) to loosen the drain.
Apply firm, steady pressure — not jerky motions.
If it doesn’t move after a few turns, add more lubricant and try again.
Continue twisting until the drain completely unscrews from the pipe threads.
Caution: Don’t use excessive force. If the crossbars break, use a drain key tool that expands inside the drain walls to grip it instead.
Lift the old drain straight out once it’s loose.
Scrape off old plumber’s putty or sealant from the surrounding area.
Wipe the surface clean with a vinegar-dampened cloth.
Inspect the threads and pipe for damage or corrosion.
If you find rust or cracks, you may want to replace the entire drain assembly.
| Problem | Likely Cause | Solution |
|---|---|---|
| Drain won’t turn | Corrosion or hardened sealant | Apply vinegar or penetrating oil and retry |
| Crossbars break | Old or brittle metal | Use a drain key or internal pipe wrench |
| Drain spins freely but won’t lift | Sealant not cut through | Cut deeper with utility knife |
| Plastic drain deforms | Excessive force or heat | Let it cool and retry gently |
If all else fails, you can cut the old drain with a reciprocating saw or call a professional plumber for removal.
When the old drain is removed:
Clean the area thoroughly with warm soapy water.
Apply a new ring of plumber’s putty or neutral silicone under the new drain flange.
Screw the new drain into place clockwise, tightening by hand first, then gently with pliers.
Wipe away any excess sealant.
Reattach the cover.
For stainless-steel drains like those in Global MoonShower systems, use neutral-cure silicone to avoid damaging the finish.
| Task | Frequency | Purpose |
|---|---|---|
| Clean drain cover and flange | Monthly | Prevents soap and hair buildup |
| Pour vinegar and baking soda mix | Quarterly | Keeps threads and trap clear |
| Check for loose threads or leaks | Every 6 months | Ensures tight seal |
| Reseal with silicone | Yearly | Prevents water seepage under floor |
Always wear gloves to protect your hands from sharp metal edges.
Do not use acid-based drain cleaners before unscrewing — they can corrode metal and PVC threads.
Work slowly and use proper leverage to avoid cracking your shower base.
| Step | Action |
|---|---|
| 1 | Remove drain cover |
| 2 | Cut caulk and loosen seal |
| 3 | Insert pliers or drain wrench |
| 4 | Turn counterclockwise to unscrew |
| 5 | Clean drain opening and re-seal |
Unscrewing a shower drain is a simple but delicate process. With the right tools, steady pressure, and a bit of patience, you can remove even a stubborn drain safely.
For premium bathroom setups such as Global MoonShower systems, the process is even smoother — their stainless-steel and brass drains are designed for easy removal and reinstallation. Regular cleaning and sealing will keep your shower leak-free, hygienic, and efficient for years to come.
