I am currently in the process of building a new pool and have a question. We are through decking and have not yet plastered the pool. I noticed about 10% of my new mortar joints have hairline cracks in them. I live in north texas and am worried about future moisture getting into them and turning into a problem in a few years. I brought this concern up to my builder but the builder said that this was normal due to the ambient temperature while applying the mortar and not to worry about it.
I also called my dad and he told me that they let the mortar get to dry while applying and he said they were probably just in a hurry and to lazy to add a little water to the mix. He also said he would make them grind the joints and have them re tuck point the joints. I agree with my dad I am spending way to much money on this build for it not to be right.

So my question is what do you other pool people think. Is the builder just being lazy or am I being to anal?

Thanks