The bowl and the floor trap are different chokes
A toilet that fills and will not empty is the bowl page: a mechanical auger is S$120 to S$240. A floor trap that is slow while the bowl is fine is a different opening. Do not pour a second chemical on top of the first.
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Watch which water rises
If the bowl rises when you flush, the blockage is in the bowl trap or just beyond it. The published auger clear is S$120 to S$240. A pan collar leak, which stains the ceiling downstairs, is S$260 to S$480 on that page, and it is not a choke.
If the shower tray rises and the bowl does not, the floor trap or the branch after it is the suspect. Chemical mixes are how people get burned and how the next worker cannot tell what is in the pipe. Tell them what you poured.
If the neighbour’s bathroom rises too, stop using the fittings and call the Town Council. That is the main stack. Life-threatening fire, a gas fire, or someone who cannot breathe: SCDF 995. A suspected piped-gas leak, from a safe distance: City Energy 1800 752 1800. An electricity supply interruption that is the building, not one tripped RCCB: SP Group 1800 778 8888. Water supply, quality or pressure from the mains: PUB 1800 225 5782.
Checklist
- Stop flushing if the bowl is already high.
- Do not add a second brand of chemical.
- Note whether the floor trap, the bowl, or both are slow.
- Book the toilet page for the bowl. Call the Town Council if other flats are affected.
Use these published bands
Published toilet page: auger S$120 to S$240, siphon set S$130 to S$240, pan collar S$260 to S$480, WELS bowl S$380 to S$550. No separate “floor trap special” is invented.
The bowl and the floor trap are different chokes: access and preparation
The bowl and the floor trap are different chokes is planned around the outlet that is already there. A washer, a hose, a siphon or a like-for-like tap on the same point is maintenance. Moving the waste, adding a water point, or opening a concealed riser is a PUB licensed plumber, and hacking the floor or wall for that new point is an HDB renovation permit through V On Construction.
The price moves with access, not with a slogan. An exposed fitting under a basin is a shorter visit than a concealed cistern, a ceiling tank, or a thread that has snapped inside the wall. Condo water shutdowns and HDB noisy-work hours can split the job across a slot the building allows. Parts you already bought are labour only when the thread and the seat match.
- Photo of the leaking joint and the brand mark
- Say if the water can be isolated from inside the flat
- Clear the cabinet under the sink
- Mention a condo shutdown or an HDB hacking rule if you already know it
- Keep children and pets out of the wet area during the visit
Plan The bowl and the floor trap are different chokes
Isolate the stopcock or the heater switch before any fitting is loosened.
Photograph the existing joint so the replacement can match the thread and the outlet.
Do the repair on the existing point. Do not chase a new pipe unless a licensed plumber is on the job.
Run water, check the ceiling below if the bathroom is over another room, and wipe the joint dry.
| Access | HDB | Condo | Landed |
|---|---|---|---|
| Approval | Town Council hours for noisy work. An HDB permit only if the layout or a hack changes. | MCST by-laws, a water-shutdown window, and a deposit if the by-law asks for one. | No HDB permit. A new sewer run or a structural chase is still PUB or BCA, not a handyman visit. |
| Water | Like-for-like on the existing outlet stays maintenance. | The same rule, plus the building may shut the riser for a short window. | Long runs, pumps and tanks need the plumber to see the plant, not only the tap. |
| Access | Service yard and bathroom are usually reachable the same day. | Lift booking and protection of common areas come first. | A roof, a gutter or an external pipe may need safe access before anyone climbs. |
- Photo of the leaking joint and the brand mark
- Say if the water can be isolated from inside the flat
- Clear the cabinet under the sink
- Mention a condo shutdown or an HDB hacking rule if you already know it
- Keep children and pets out of the wet area during the visit
Frequently Asked Questions
How much is an auger?
S$120 to S$240 for a mechanical clear of the bowl, from the toilet page.
I already poured chemicals. What now?
Stop. Do not mix a second product. Tell the technician what went in. Ventilate. If you feel faint, leave and call 995.
The flat below has a stain. Is that a choke?
Often a pan collar, priced S$260 to S$480, not a slow trap. Read the toilet page before you paint their ceiling.