Hi   We are just in the process of building a house and are currently working on substructure.   I have found the location of the water seepage. It's right in the centre of the house. It's small amount of seepage but it builds up and we have to pump it out every couple of hours. We have not had rain for a few days.  The site slopes from the road towards the back of the house. There are no drains on higher end (front of the house). The bay window trenches, on the higher e