PARK YOHO Drain Services

In a government press release of 20 August 2026, an EPD spokesman said the department was very concerned about illegal discharges from livestock farms along the Kam Tin River, and that untreated livestock waste discharged into rivers not only seriously pollutes the water but also causes an odour nuisance. The two smells behave quite differently. A river smell shifts with the wind and the time of day, is strongest on the balcony, at the windows or along the footpaths, thins out once the windows are shut, and is often noticed by neighbours at the same moment; drain work will not fix that, so report it to the management office and the EPD. A drain smell stays put at one particular outlet, does not go away with the windows shut, and gets stronger once you close the bathroom door and switch on the exhaust fan; that usually points to a trap seal or a branch pipe, and is worth having inspected.

According to a Yahoo Finance inspection report on PARK YOHO Bologna in April 2023, the bathroom of a one-bedroom flat left empty for several years had a strong smell, which the inspector put down to a dried-out drain. The developer replied that the trap system checked out normally and there was no smell once water was added. The Buildings Department also warns that when a floor drain goes unused for a long time the water seal in its trap slowly evaporates, and advises pouring about half a litre of water into every floor drain at least once a week. For let flats, arrange regular top-ups between tenants; if the smell is still there a day or two after adding water, check whether the trap is damaged or has been altered.

Judging by the estate's age, most flats have already had their first fit-out, and resales and changes of tenant bring further renovation. Tiling bathroom and kitchen floors involves cement or tile adhesive, and the debris easily falls into floor drains and basin outlets. The Buildings Department's guideline says that where a pipe is seriously blocked by materials such as cement, the affected section may have to be exposed and replaced, because high-pressure water or rodding may not clear it. So keep the outlets covered during the works and test every outlet with water afterwards; if one keeps draining slowly, have it checked early rather than letting the debris harden and build up.

Some PARK YOHO phases have ground-floor special units; Phase 2A, for example, launched six ground-floor duplexes, and the show unit came with a garden of over 1,200 sq ft and a private pool (per Midland Realty on 11 July 2017, citing on.cc). By design, these units have outdoor drains, and with so much landscaping around, leaves, planter soil, grit and moss are easily washed into them by rain. The problem often goes unnoticed until heavy rain, when water ponds and in bad cases spreads indoors. Before the rainy season, clear the outlet grilles and avoid sweeping soil into the drains. If water still drains away slowly after the surface debris is removed, the pipes underneath should be checked for silt.