I dewinterized MH today, Damon Daybreak 2005, 3272F. The water pump does npot seem to build up pressure, keeps on running and no water coming out of fausets. The tank is full and I followed all the instruction on the Damon video. And the pump is not making half the noise it made when I winterrised it last fall. I hook it up to the house water line and everything works fine even the hot water, but when I try with the pump there's no water.