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Discussion Starter #1
The house I moved into about 2 years ago has a tiled shower floor and after about a year some of the grout started to pop. The original owner used a premix so hoping it was just crappy grout I used my oscillating tool on New Years 2019 and removed the old premix and installed a better grout. Fast forward until now and some of the same areas are losing
grout again. I have no idea on the type of shower pan they used but at this point what are my options?

I worry it’s remove all the floor tile, remove the shower pan, make sure the floor itself is stable and then start over. This plan definitely will sound drastic to my wife since the shower tile install is less than 2 years old so looking for feedback before I start anything.


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It's unfortunate but you're right. Popping, cracking grout is almost never a fault of the grout. Of course some premixed grout is crap, but the truth is when grout and tile start failing, it's almost always a problem with the substrate and installation. For example, poor waterproofing. I concur it all needs to come out to actually fix it. The good news is it's usually not the subfloor in a shower - it's usually a bad shower pan and tile installation.
 

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Discussion Starter #4
What’s the recommendation for shower pans? Is it hot mop or something else?


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