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Welcome to the Bunnings Workshop community @razia. It's wonderful to have you join us, and many thanks for your question about cleaning bathroom tiles.
It sounds like a few images of the issue would really help our members make informed suggestions. Let me know if you need help uploading pictures.
The white residue you're noticing between your tiles is likely due to a combination of leftover cleaning products and possibly some efflorescence, which is a build-up of minerals like calcium from water seeping through the grout. To remove this, start by thoroughly rinsing the area with clean water to ensure all cleaning product residue is gone.
If the residue persists, it may be efflorescence, and it could take further cleaning with your vinegar solution to break it down.
Once the white residue is removed, consider sealing the grout with Betta TileCare 1L Tile & Grout Sealer to prevent water and minerals from seeping in, which will reduce the chance of efflorescence forming in the future. To maintain the appearance of your tiles and grout, avoid using too much cleaning product and ensure thorough rinsing. Periodically resealing the grout will also help keep it looking its best.
Please let me know if you have any questions.
Mitchell
Here’s a photo. It does not show much but it’s in the middle of the grout. Do you still advise the same thing?
That does look like efflorescence and calcium build up @razia. Can it be scratched away at all? Be careful not to damage the grout or tile.
You'd want to be careful using the vinegar around the dark grout as it could discolour it.
Mitchell
