Thanks for opening a new topic. Your issue was completely different from the other one plus now yours will get full attention. Many people here won't look at a St Augustine topic. So...

Your sod dried out on the pallet. See it's just the edges that are bad. The good news is that it is likely just dormant. The other good news is that you have Kentucky bluegrass, so it will recover by itself. You don't need to reseed.

Or you could call the people who put it down and have them replace those few pieces that browned. If this is what you're going to do, don't wait around, because the grass will be growing into the soil making it a little harder to replace.

Is your soil soft and soggy after the hour of watering? That seems like a really long time. Normally what we tell people is to water just enough to moisten the underlying soil such that it never gets saturated or soggy. The method is to water for 5-10 minutes at breakfast, lunch, and dinner times. As soon as the roots knit into the underlying soil you need to back off on the watering frequency and go up on the duration. By the end of the summer season you should be watering 2x per week at about 1/2 inch each time. Summer is a sensitive time with new roots. Then next year you can start with the following watering for mature turf.

Watering: Deep and infrequent is the mantra for watering. This is for all turf grass all over the place. Deep means 1 inch all at one time. Put some cat food or tuna cans around the yard, and time how long it takes your sprinkler(s) to fill all the cans. Memorize that time. That will be the time you water from now on. My hose, sprinkler and water pressure takes 8 full hours to fill the cans. Your time will likely be less. I like gentle watering. As for watering frequency, that depends on the daytime air temperature. With temps in the 90s, deep water once per week. With temps in the 80s, deep water once every 2 weeks. With temps in the 70s, deep water once every 3 weeks. With temps below 70, deep water once a month. Note that you have to keep up with quickly changing temps in the spring and fall. This deep and infrequent schedule works in Phoenix and in Vermont, so it should work for you. The reason for deep and infrequent is to grow deeper, more drought resistant roots and to allow the soil to dry completely at the surface for several days before watering again. If it rains, reset your calendar to account for the rainfall.

So for the first two weeks I should be watering 1 inch at a time at breakfast lunch and dinner? Or 1 inch for the whole day? A lot of websites say to water twice daily for the first two weeks then to back off to once per week. The weather this week is 80s but next week will be 90s. This Saturday is one week since installed. Thanks!

First 2 weeks water 3x per day for 5-10 minutes each time. If you accumulate an inch of water that should be over a full week. So 1 inch per week split up over 21 watering events or 1/7-inch per day. That's 1/21 of an inch each time. I realize you cannot easily measure that, so that's why we suggest a very short watering time of 5-10 minutes. The idea is to not saturate the soil while the roots are moving from the sod to the soil.