Dear James: I noticed a damp spot from an extremely slow leak under my kitchen sink. I cannot afford to call a plumber right now. Is there some method to temporarily repair it? — David J. Dear David: A plumber would rightly recommend that the drain should be replaced, and it will eventually need replacement. Even though it is a relatively minor job for an experienced plumber, it is expensive to have the plumber just walk in the door and inspect it. Once the leak is stopped, you will have time to study videos on how to replace the pipe yourself. Place a pan under the drip to catch the water. Place it on something to raise it off the floor so it will dry out. Since you may not know how long the pipe has been leaking, there may have already been some damage done to the building materials …