D通渠佬 had no effect!
Try 飛魚牌 ($10-$13). Don't pour any more water into the 浴缸 12 hours before you pour
the acid and leave it for another 6 to 12 hours.
Wear protective clothing and face mask before your pour water onto the 浴缸 and plumb
the tub.
In the future, it is better off to collect the hair and dirt yourself. Use a wire net for
bathroom without 浴缸 or bathroom floor mats (with the one adjacent to the hole flip over.
And if you use 浴缸 , use a plastic collector where you can buy at any local hardware store.
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