Hi,

just wondering... are we using "tile grout" to add it in between the gap of tiles ? what would be the purposes a ? to make the gap looks evenly same color ?

tile adhesive is to be used to stick our tiles onto cement / floor right ? if no issue so far.. we do not need this ?

I am having some hollow tiles (2*2 size) but still no issue so far.. should i change it or let it be there untouch ? from my undersyanding.. if i am about to take out that piece of tile and repaste it back ... air could go to nearby tiles again ? then seems like no purpose hmm...

thanks for the advice..