Mould on kitchen floor.

[noeloneill]

Hi all, recently I got an underground leaking pipe fixed in the kitchen, removed the lino and been drying out the cement since, it was very wet. I have noticed a number of small patches of white mould on the cement. Should the whole floor be treated before I get it tiled.

It has been a week drying out and probably has another week to go, but will this disappear when fully dried?

Thanks for any help.

[Colin Wilson]

Could it be salt leeching out of the cement ? (you see it on brick walls sometimes)

[The Natural Philosopher]

Its almost certainly not mold,but efflorescence - salts carried out of cement by water moving through.

If you are tiling, brush it off and tile away.

BUT i'd wait a few weeks to get the floor really dry beforehand.