Dear Master Cecil: Thank you very much for your response. 1) Regarding your response that if there was a water feature in the backyard where the moutain star is, this would negate the sum-of-ten effect. Since the back yardof this house is sloping upward, the builder had installed a "concrete drainageditch" right behind the fence of the property's boundary, so that water comingfrom the higherground above will flow into this ditch, and won't flood the backyard, should there bea big rain storm. Is this ditch considered bad fengshui? 2) The front of the house has a storm drain which is right below the streetsidewalk. This storm drain has an opening about 4 feet wide. This openingis between the driveways of this house and of the next-door neighbor's house. Is this storm drain considered bad fengshui? Thank you very much for your advice. Pam