The noticed last night that my dishwasher is leaking for several days. I removed the front flap and look like the water is comin out of a white tube like thing right at the center. I was able to take a picture. I bought this brand new and used it only for 18 months now. It messed up all my wooden floor. When I spoke with a technician over phone he advised to get a new one since it would cost at least $300 to fix it. Is this a common problem with this dishwasher? Anything I can try before I throw this out?