Sometimes sediment in the pipes, or at a fitting, can dislodge and work its way through. If you can access the water filter, remove it, put a catch basin under and teat at that location. Try emptying ... read more
+1 to the previous comments. Depends on what the foam manufacturer specifies as well as what the exterior sheathing is going to be. I would also recommend a thicker foam for additional insulation and ... read more