Advice, please - new sod is brown
Just had a sod lawn installed by my a landscaper, and it's looking really sad. OK, *half* of it is looking really sad. When he installed the first half of the lawn, it was late morning, extremely hot, and the sod had this awful grey look to it... my landscape guy said it would green up and to just water it twice daily until it established. However, he installed the second half yesterday and it's still a deep green after 24 hours. The first half has since turned primarily brown. When I called to ask about this problem, he left a message on my phone that that's just what sod does in the heat, and both sides would look similar soon.
I'm inclined to believe the first half of the sod was badly dehydrated by the time it was installed. Is this truly no big deal and it should spring back fairly quickly, or should I insist that he replace the ugly half?
Thanks in advance for any advice you could give.