Grout falling out between my tiles Why? I just grouted tile surrounded by my bathroom. I waited the cure...

I just grouted tile surrounded by my bathroom. I waited the cure time of year and didn't seal it. I be told you don't have to stamp it. Now it's cracking and falling out from between the tile every where.. why? it's a grout/cement for both securing the tile and grouting. It even say it's for steam rooms and wet area's how am I going to fix this?
Answers:    I tile every light of day of my life, and one answer offer a possibility, Faulty Grout.

I'll explain that notion and.

Two major reason for grout failure

Mixed next to TOO much, or too LITTLE water.

Too much dillutes the bonding agents and aids within causing them to humble, losing effectivenss

Too little doesn't allow the bonding agents to react as intended.

Faulty may be due to a lenght of time the product be warehoused, or sat on a pallet/shelf surrounded by a big box store, altering the properties of the agents.

The fix might be a pain, but you'll own to get the old/crumbling out, and start again.

There is never a REAL NEED to trademark grout, albeit companies make millions clich¨¦ so.

Steven Wolf
just my two "sense"
First bad, you don't have to trademark the grout.....but you really should. No matter where on earth I have laid tile I hold always hermetic it. If you get the appropriate sealer (not the cheap crap from home depot) whatever spills on your grout will come right up. But if it is not hermetic, it will just stain and apt luck trying to keep it verbs.
I have found sometimes that if my grout be too dry it would start to crack and break off. However you are using a grout/cement and I hold never used that. I don;t know how big your project was, but the best approach to lay tile is to lay the tile with the cement and later wait sometime and then grout. Hope it works out for you :)