Orignally posted this to the "sticky" ... but this thread seems more appropriate.... I think this is on-point to this thread, and not a "hijack" - my sincere apologies to the OP if it is viewed otherwise.....
An ealier thread (about a year ago) discussed either blowing-out the system, or adding anti freeze, through the city water inlet. RRR, in a posting above, also mentioned blowing-out through the city water inlet. My unit's manual indicates five gallons of antifreeze should be added to the fresh water tank ... but I just had my new unit winterized at the dealership, and he (the dealer-guy) **also** mentioned feeding anti freeze via the city water inlet. This seems like a good idea, but I am confused though (like ... keep-me-awake-at-night confused) on two points. (my apologies if this is already covered in a thread - but if so I can not find it)
FIRST: if feeding anti freeze through the city water inlet, how do you feed/pump it??? The RV's pump certainly will not "pull" it out of a jug connected to this inlet - so do you use a separate external pump or something similar???
SECOND: if EITHER blowing-out or feeding anti freeze through the city water inlet, how does this end up protecting the RV's pump (and anything "upstream" of there??? The city water inlet is "downstream" (i.e. on the outlet side) of the pump, and the pump must have a check-valve on its outlet ... so just how do you end up either blowing out the pump or getting anti-freeze in to it??
- 2012 Fleetwood Expedition 36M -