For the low hanging fruit — There are no visible cracks anywhere on the property; there are no gutters at all; there are no large green anythings on the property; the *entire* place is hardscaped with the exception of a couple of planter strips and an 8×10 grass patch at one corner of the lot. The grass patch is surrounded by concrete and does not touch the house. The concrete is all in good shape.
We have been there twice now in the rain (husband went out at 615 am today) and there is no pooling or streaming that he can see from the outside. The house is on the high side of the street, and the neighbors across the road on the low side all back up to a canyon. The downward slope of all the patios (toward the street) seems adequate to our untrained eyes, and the block walls at the front of the house do have drainage holes, so somebody was thinking of the issue at least a little.
We’ll have to ask about the pressure regulator. The plumbing was upgraded to ABS, but somewhat half-assed. That said, the guy we had out yesterday said none if it is actually leaking right now. Just poor quality work that wouldn’t pass inspection.