I have a 2009 Hunter 36, and just brought the boat back to my home marina after being on the hard for 5 months...the boat had been de-winterized prior to moving the boat back...the first time my wife turned the water pump on, using one of the faucets, turning the faucet off, the freshwater manifold started making a strange off again, on again noise...hope someone out there can relate to this problem, and share a method of fixing same...thanks, Kerbs