Regrouting wetroom shower/tray area

[xchrisx]

Morning,

I had someone in to regrout/skim my bathroom floor as the grout had lifted in some places. The grout was fine in the shower area apart from the usual limescale build-up & the floor was tanked correctly 4 yrs ago & had never had a problem.

He attempted to remove the limescale & unfortunately during this process, 50% of the original grout was removed. He re-grouted the area again with Ardex-Flex which was used in the 1st instance 4 yrs ago.
In error, the shower was used less than 24hrs after the grouting & immediately we could see in areas, when putting foot pressure, water seeping up through the re grouted area. The shower hasn't been used since.

This was 7 days ago & the moisture has almost disappeared when walking in the above area's but, I'm now unsure what to do from here?

*Has the grout laid last week now of no use because of becoming wet so soon because of running the shower - should this be removed, dry area completely & re-grouted?
*Has this moisture now ruined the tanked shower section altogether now that water has obviously got in?
*Is there a beneficial sealant that can be applied, once grout has properly dried - how long ideally shd you leave the grout to dry properly within a wetroom area.

Thanks & appreciate your feedback

 

[AtlasTony]

what was used to remove the limescale?

 

[xchrisx]

I'm sure he used a grout remover so, basically he removed the limescale as well as the grout. As mentioned, he regrouted the area again & the above problem arose.

I was in B&Q yesterday & spotted Unibond Flexi-Mix Additive - wondering if this can be added when re-grouting the area?

Thanks

 

[tictic]

First...tap your tiles and listen for any hollow sounds..and if so...


You have trouble ...lift the lot...

You could/would have water penetration under the tiles thus a de-bonding off tile off the floor and the adhesive broken down with the water penetration through....the not SET GROUT...

Wetroom grout should have been left for a min off 7days before shower use..