Bathroom deep clean: hard-water stains, dark grout and the drain smell

Three things make Nellore bathrooms hard to keep clean: hard borewell water that leaves a white crust wherever it dries, a monsoon that keeps the room damp for months and feeds the mould in the grout, and floor traps that dry out in the summer heat and let the drain smell up. A bathroom scrub is built around exactly those three — descale, de-mould, clean the trap — and costs ₹699 on our rate card.

Here is what it actually involves and what you can do in between.

Hard-water scale

The chalky film on taps, the showerhead, the glass partition and the tiles near the floor is mineral deposit. It does not wash off with soap or a general floor cleaner because those are alkaline; scale dissolves in mild acid.

What the team does: applies a descaler, lets it work, scrubs, rinses, and polishes chrome. Showerheads with blocked holes are soaked. The commode bowl, where scale builds a brown ring at the waterline, is treated the same way.

What you can do weekly: squeegee the tiles and glass after the last bath of the day and wipe the tap dry. Scale only forms when water is left to evaporate. For light build-up, a cloth soaked in white vinegar wrapped around the tap for an hour works. Never use a strong acid on marble or natural stone — it etches.

Dark grout and mould

The grout line is porous. In the monsoon it stays wet for weeks, and the black or orange spots are mould growing in it. Scrubbing with a floor cleaner brightens it for a day.

What the team does: scrubs the grout with a brush and a mild bleach-based cleaner, leaves it to work, rinses well, and dries the room with the exhaust running. Silicone around the basin and bath is checked; if it is black inside, cleaning will not fix it and it needs replacing.

What you can do: run the exhaust fan for ten minutes after every bath, keep the door open when the bathroom is not in use, and treat the grout once a month with a diluted bleach solution (a capful in a mug of water, brush, rinse). Do not mix bleach with anything else — more on that below.

The smell from the drain

Under the floor grating is a trap that holds a small amount of water. That water is the seal that stops sewer gas coming up. In summer, a guest bathroom that is not used for a week can dry out and start to smell. The second cause is the trap itself: hair, soap scum and grime rot in it.

What the team does: lifts the grating, clears the trap by hand, flushes it, and checks the seal refills. Same for the wash basin trap.

What you can do: pour a mug of water into every floor trap you do not use daily. Lift the grating monthly and pull out the hair. If the smell continues after a clean trap and a full seal, it is a vent or pipe issue — a plumbing job, not a cleaning one.

What never to do in a bathroom

• Never mix acid (toilet cleaner) with bleach. Together they release chlorine gas. Use one, rinse thoroughly, then the other if needed — or just use one.
• Never pour acid down the drain hoping to clear a blockage. It damages PVC and the trap and does not shift hair. A drain snake does.
• Never use a scourer or acid on a marble or granite floor. It dulls and etches. Warm water and a pH-neutral cleaner.
• Never let the geyser's switch or the socket get wet during a scrub. Switch it off at the MCB before the team starts washing down walls.

What a bathroom scrub will not fix

• Yellow stains spreading from a wall or ceiling — that is seepage, usually from the flat above or a pipe inside the wall.
• Tiles that sound hollow or have lifted — cleaning them cleans them; they still need fixing.
• A commode that stains again within a week of descaling — check the flush tank; if it is always trickling, hard water is building scale constantly.
• Rust coming through chrome — the plating has gone; the tap needs replacing.

If the bathroom is clean but still smells, still stains, or still has a wet patch on the wall, the cleaning is done and the plumbing has started.