I think the cement stain left by the contractor during renovation. Anyway to remove it by myself? Pour Mild acid used for floor cleaning, will it works?


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go hardware shop can buy concrete dissolver. dont overfill. when done flush with lots of water so it dont damage the connection along the pipes.

https://www.lazada.com.my/products/pye-cem-...s590931301.html

walau.. dint expect this can buy in lazada

Remove water using hand suction pump (DIY selling RM8)

Pour solution on cotton wool or tissue and use a tong or chopstick to place over the cement.

When cement lossen, remove it.

good idea if one wearing gloves and have steady hands.