We have a new build going in E. Tx. Pool builder has been great. Great communication and I don't feel like he's trying to sell me things I don't need. Pool is a free form 40x26 with spa. After the dig we were held back a few days because of the rain and had some cave in issues to deal with. The extra dirt was dug out and it was formed back up and now the gunite (shotcrete) is done. Forms have been off two days and while watering yesterday I noticed a fairly deep hole in the backside of the shell. Looks like a concern to me but just want other people's opinions. Thanks in advance.