Since I am still in the refurbishing honeymoon stage of GMC ownership I
have not had the luxury of listening to the water pump at night during
travels. So my question is how is the expansion tank utilized in the water
system, to prevent pump cycling?
Rich
On Sat, Nov 9, 2019 at 7:02 PM John Wright via Gmclist <
> I can recommend an expansion tank for your water system. I suggest the 2
> gallon size and it will give you the best service possible and what I use.
>
> Go to Ace Hardware, Lowes, Home Depot and do a search for expansion tank
> and several will pop up at each site. They typically run in the $38 to
> $42 +/-. DO NOT get the little black plastic 1 qt expansion that is
> available from many RV supply places. I had that in our first coach and it
> was almost not noticeable, not worth he price, almost the same price of a 2
> gallon unit.
>
> <
>
>
https://www.campingworld.com/shurflo-accumulator-tank-2290.html?cgid=fresh-water-pumps-accessories=12&cgid=maintain-your-rv%2Ffresh-water%2Ffresh-water-pumps-accessories
> >
>
> J.R. Wright
> GMC Great Laker
> GMCGL Tech Editor
> GMC Eastern States
> GMCMHI
> TZE Zone Restorations
> 78 Buskirk Custom 29.5' Stretch
> 75 Avion (Under going Frame up Restoration)
>
>
>
> On Sat, Nov 9, 2019 at 11:39 AM Jim Kanomata via Gmclist <
>
> > I’m with Matt on a pump that makes noise.
> > Always shut it off when traveling as you will not hear it running when
> > fittings come loose while driving.
> > Randy Van Winkle came up with a switching system that make controlling
> the
> > pump very efficiently.
> > It is called the Winklers remote water pump control kit.
> > Go to our sight: appliedgmcrvparts and go to search.
> > Instruction sheets should be in our sight under instructions.
> >
> > On Sat, Nov 9, 2019 at 8:17 AM Russell Mehlenbacher via Gmclist <
> >
> > > My coach has a triplex pump and had a small shur flo accumulator
> > installed.
> > > I can hear it running under the bed if I listen. I felt the accumulator
> > > worked as a pulse dampner, but why bother. I had bought a freight
> surplus
> > > (discount!) RO pressure/expansion tank (4 gal) and stuffed that under
> the
> > > bed. I pump it up as needed and shut it off. It limits water leakage
> in
> > > case of failure and no one wakes to unexpected vibrations.
> > >
> > > Russ
> > > Rochester Hills, Mi
> > > 76 Eleganza
> > >
> > >
> > > On Sat, Nov 9, 2019, 9:50 AM tonka6cuda6--- via Gmclist <
> > >
> > > > > > Seeing as how im on a system component upgrade kick (plus its
> > inside
> > > > work so i can stay warm...lol) i may as well replace the noisy water
> > pump
> > > > > > in this rig.....need recommendation please and thanks.
> > > > >
> > > > > Rich,
> > > > >
> > > > > I understand why you might want this, but think about it. All of
> the
> > > > new three and four diaphragm pumps are relatively quiet. While I
> will
> > > admit
> > > > > that the OE Par (luga-luga) pumps can be annoying, a silent pump
> may
> > > > serve you poorly. In my world, many have found that a pump so quiet
> it
> > > > could
> > > > > not be heard undersail was a disaster. Taps often vibrate open and
> > it
> > > > doesn't take much or long to pump a quantity of the potable water
> > > > overboard.
> > > > > While potable water is not as precious to an RV as it might be on
> > tidal
> > > > water, it is still a serious consideration. Oftimes I, have been
> > > sitting in
> > > > > a salon enjoying company when the potable pump would rattle. This
> > > > causes an immediate reaction as some jump to find the dripping tap.
> > > > >
> > > > > If you are trying to have the pump not make noise during nighttime
> > > > flush, consider included a small bladder tank (head tank, expansion
> > > tank) in
> > > > > the system. 26s have the room to accommodate such. Then turn the
> > pump
> > > > off for the night.
> > > > >
> > > > > Matt
> > > >
> > > > Thanks for the insight Matt....didnt think a head tank was a viable
> > > > install.
> > > > --
> > > > Rich Mondor,
> > > >
> > > > Brockville, ON
> > > >
> > > > 77 Hughes 2600
> > > >
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