Whatever works for folks...I tend to keep the water in the line during
warmer / camping months and then run the pump after filling the tank with
freshwater for about 30 seconds or so  - until I can feel the cool fresh
water water running through the faucet as well as remove any air.  I don't
keep water in the storage tank unless camping and as a result I refill the
tank fairly frequently.  This seems to work for me in having water
instantly come through the faucet when the pump is switched on as the pump
stays primed.  Everything gets drained in the winter.

Bruce

On Wed, Apr 28, 2021 at 9:08 AM Eric Caron <ericcaron96@comcast.net> wrote:

> Good news is that with use the water is now staying in the line longer.
> But after about 5 minutes it goes down.  That is about what I want.  Right
> there for dishes or repeat uses then in tank for long term storage.
>
> I guess exercising the system got it working again.
>
> Eric
>
>
> > On Apr 28, 2021, at 10:09 AM, ddbjorkman@verizon.net wrote:
> >
> > Hi Eric.
> > Do you really want to have your water in that plastic tube for weeks
> between camp trips?  The water tank is probably much more of a
> sanitary/better taste place to store water.
> >
> > I think.
> >
> > Dave
> >
> >
> > -----Original Message-----
> > From: Eric Caron <ericcaron96@COMCAST.NET>
> > To: vanagon@GERRY.VANAGON.COM
> > Sent: Tue, Apr 27, 2021 1:56 pm
> > Subject: Sink pump improvement?
> >
> > Hi folks,
> >
> > I always noticed the sink pump has to work hard when turned on and then
> after a pause water comes out.
> >
> > Is there a simple check valve that could be added to the line by the
> faucet that would keep water in the line for some time so the pump would
> have a easier time and water would come out sooner?
> >
> > Anyone done this or know what part would be needed?
> >
> > Eric Caron
>