Chemical wash Jurong West
A chemical wash in Jurong West treats the fan coil in place with a chemical solution to shift fouling that plain water will not, then flushes the drainage line. The unit stays mounted on the wall.
Why this is different here
HDB began planning the Jurong West new town in 1984, and the first flats in the wider Jurong area were completed at Taman Jurong in 1963. That construction era predates aircon as a standard fitting, so drainage was retrofitted and the fall along the run is often marginal, which is what produces repeat chokes.
What actually happens
- The drain pipe is checked for gradient and choke before anything else; in retrofitted runs the fall is often marginal to begin with.
- A vacuum pump clears the condensate line. Blowing it through just pushes the blockage further along the run.
- Fan coil and blower wheel are cleaned; in Singapore's humidity the wheel fouls faster than most owners expect.