「喬裝星人」杜小喬（杜以辰）繼續攪攪震！上集講完浴缸改企缸要裝隔氣彎管，點知今集佢又想亂改渠管？！ 好喇，連Flat-Check星級導師都怕咗你，今次再教埋你咩係反虹吸管！想一齊學嘅朋友，快啲一齊睇片喇！

【My Guest from the UBWs Star?! EP2 Managing the Drainage Pipes in the Toilets】

Our guest from the UBWs Star Siu-kiu is making mischief again! Previously on the series, we learnt that we should install a U-trap when converting a bathtub into a shower tray. In this episode, Siu-kiu intends to mess with the drainage pipes! Alright, our “Flat-Check” star mentor will talk about what anti-syphonage pipes are in this episode. Watch the video if you want to know too!

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