RE: Water Pumps
A little background, the water pumps in RVs are one are where we as manufacturers are at the mercy of Shurflo. Shurflo dominates this industry in terms of providing the water pumps for over 95% of the industry. Most of the time they are fine, but the fact it is, they do fail at a rate that is higher than any other "applicance" or mechanical system in an RV. We have a box of them at any given time here at the factory of units that did not work, right out of the box. Of course, as manufacturers, when you use 30 a day (Heartland) or 100+ a day (Keystone and Forest River), you are going to have some that don't work. The rate of success on their bigger model (I think the 5.7) has been better, but it is an upgrade in price as well.
The good news is they are typically easy to change out if a problem does occur.
Just an FYI.
ST