Threaded Mode | Linear Mode

11-12-2009, 03:18

Rick,

I see your in Iowa and were commenting on the cold weather. This is 'Indian Summer' and we feel very grateful here. If you stick around a few more weeks you can experience the beginning of our normal weather ... which is brutal and has taught me that I would have died my first winter if I had been a pioneer.

Roger Webb

91 WL

Cedar Rapids, IA

-----Original Message-----

From: Rick Davis

To: WanderlodgeForum@yahoogroups.com

Sent: Thu, Nov 12, 2009 6:55 am

Subject: Re: [WanderlodgeForum] Re: Surging house water pumps

Wow, so many responses already! Thanks all.

Bob, the pumps I put on are the same ones that came off; Shurflos. Soif the wiring worked for the old ones would that meanit wouldbe adequate for the new ones?

Pete and Wayne, regarding addingan accumulator tank. That sounds complicated to me. I had previously had one pump that always worked good and didn't surge. Maybe with two working such is needed?

Greg, regarding the back flow valve; instead of removing and plugging lines, would simply shutting a pumps incoming and outgoing valves off suffice?

Ralph, newby question. Where is the Sporlan located?

Rick

1993 WLSA

in Iowa (wherethe water at least works, andit's too cold to putz with it quite yet this morning.)

From: gregory O com>

To: WanderlodgeForum@yahoogroups.com

Sent: Thu, November 12, 2009 1:53:38 AM

Subject: [WanderlodgeForum] Re: Surging house water pumps

it sounds like one of the new pumps has a bad backflow valve. remove the lines from one pumpat a time and plug the ends with a bolts and hose clamps.

--- In "WanderlodgeForum%40yahoogroups.com", "davisgr" wrote:

>

> What can I do stop my house water pumps from "surging"; runs for a couple of seconds, hesitates a moment, runs for a couple of seconds, etc.? Both pumps are new. One does it worse than the other, depending on the load being put on it. I have tried running all faucets at once for a while. I have tried opening the faucet valve located in the same compartment and draining water from there.

>

> Rick Davis

> 1993 WLSA

> Loudon, TN

> (at HWH in Iowa tonight-getting colder!)

>

11-12-2009, 06:56

Rick - I'll answer what I can.
>
> Bob, the pumps I put on are the same ones that came off; Shurflos. So if the
wiring worked for the old ones would that mean it would be adequate for the new
ones?

Do you know the new and old pump model names/numbers?

If the pumps are the same model then the wiring should be fine. In our case the
new Shurflo "Extreme" model draws twice as much current as the old one. There
are a lot of Shurflo models. Expect 5-8 amps for the smaller Shurflos, 10-14
for the the high output types.

Regarding an accumulator, if the old pumps worked without one and the new pumps
don't, then the new pumps may have more output (which, BTW, means they probably
draw more current). Adding an accumulator is easy because it only requires a
'T' fitting after the pump. Closer to the pump is good, but house systems often
have long distances between the pump and accumulator. In any case, the
accumulator T should be between the pump and the first faucet.

Food for thought: In 1993 Shurflo pumps did not have much output and did not
draw much current. This probably explains why BB used two. A single
high-output Shurflo Extreme model would easily supply the whole rig. I can wash
the car from our tank and Shurflo Extreme while there is still enough pressure
and volume at the inside faucets.

Bob Griesel '84 FC31 WLII WA

>
> Pete and Wayne, regarding addingÃ an accumulator tank.Ã That sounds
complicated to me.Ã Ã I had previously had one pump that always worked good and
didn't surge.Ã Maybe with two working such is needed?
>
> Greg, regarding the back flow valve; instead of removing and plugging lines,
would simply shutting a pumps incoming and outgoing valves off suffice?
>
> Ralph, newby question.Ã Where is the Sporlan located?
>
> Rick
> 1993 WLSA
> in Iowa (whereÃ the water at least works, andÃ it's too cold to putz with it
quite yet this morning.)
>
> Ã
>
>
>
> ________________________________
> From: gregory O
> To: WanderlodgeForum@yahoogroups.com
> Sent: Thu, November 12, 2009 1:53:38 AM
> Subject: [WanderlodgeForum] Re: Surging house water pumps
>
> Ã
> it sounds like one of the new pumps has a bad backflow valve. remove the lines
from one pumpat a time and plug the ends with a bolts and hose clamps.
>
> --- In WanderlodgeForum@ yahoogroups. com, "davisgr" wrote:
> >
> > What can I do stop my house water pumps from "surging"; runs for a couple of
seconds, hesitates a moment, runs for a couple of seconds, etc.? Both pumps are
new. One does it worse than the other, depending on the load being put on it. I
have tried running all faucets at once for a while. I have tried opening the
faucet valve located in the same compartment and draining water from there.
> >
> > Rick Davis
> > 1993 WLSA
> > Loudon, TN
> > (at HWH in Iowa tonight-getting colder!)
> >
>

11-12-2009, 08:25

You probably have an accumulator tank already. It might be short of air or the bladder has leaked (rendering the tank useless), etc.

The link shows the before and after of the pump replacement job I did on my coach. The accumulator tank is mis-labeled as "expansion tank"... you probably have one already. The sporlan valve is also labeled in one of these shots.

<http://gallery.me.com/aeonix1#100029>

Pete Masterson

(former) '95 Blue Bird Wanderlodge WBDA 42

El Sobrante CA

"aeonix1@mac.com"

On Nov 12, 2009, at 4:55 AM, Rick Davis wrote:

Wow, so many responses already! Thanks all.
Bob, the pumps I put on are the same ones that came off; Shurflos. Soif the wiring worked for the old ones would that meanit wouldbe adequate for the new ones?
Pete and Wayne, regarding addingan accumulator tank. That sounds complicated to me. I had previously had one pump that always worked good and didn't surge. Maybe with two working such is needed?
Greg, regarding the back flow valve; instead of removing and plugging lines, would simply shutting a pumps incoming and outgoing valves off suffice?
Ralph, newby question. Where is the Sporlan located?
Rick
1993 WLSA
in Iowa (wherethe water at least works, andit's too cold to putz with it quite yet this morning.)

From:gregory O <"greg@rainbowrv.com">
To:"WanderlodgeForum@yahoogroups.com"
Sent:Thu, November 12, 2009 1:53:38 AM
Subject:[WanderlodgeForum] Re: Surging house water pumps

it sounds like one of the new pumps has a bad backflow valve. remove the lines from one pumpat a time and plug the ends with a bolts and hose clamps.

--- In"WanderlodgeForum%40yahoogroups.com", "davisgr" wrote:
>
> What can I do stop my house water pumps from "surging"; runs for a couple of seconds, hesitates a moment, runs for a couple of seconds, etc.? Both pumps are new. One does it worse than the other, depending on the load being put on it. I have tried running all faucets at once for a while. I have tried opening the faucet valve located in the same compartment and draining water from there.
>
> Rick Davis
> 1993 WLSA
> Loudon, TN
> (at HWH in Iowa tonight-getting colder!)
>

11-12-2009, 18:06

Yes Rick. that would be the way to go. turn of the water to one pump at a time
but you may need to also disable the electric on that pump because it may start
up when the pressures equal out past a bad check/backflow valve.
Greg
94ptca

--- In WanderlodgeForum@yahoogroups.com, Rick Davis wrote:

> Greg, regarding the back flow valve; instead of removing and plugging lines,
would simply shutting a pumps incoming and outgoing valves off suffice?
>
> Ralph, newby question.Ã Where is the Sporlan located?
>
> Rick
> 1993 WLSA
> in Iowa (whereÃ the water at least works, andÃ it's too cold to putz with it
quite yet this morning.)
>
> Ã
>
>
>
> ________________________________
> From: gregory O
> To: WanderlodgeForum@yahoogroups.com
> Sent: Thu, November 12, 2009 1:53:38 AM
> Subject: [WanderlodgeForum] Re: Surging house water pumps
>
> Ã
> it sounds like one of the new pumps has a bad backflow valve. remove the lines
from one pumpat a time and plug the ends with a bolts and hose clamps.
>
> --- In WanderlodgeForum@ yahoogroups. com, "davisgr" wrote:
> >
> > What can I do stop my house water pumps from "surging"; runs for a couple of
seconds, hesitates a moment, runs for a couple of seconds, etc.? Both pumps are
new. One does it worse than the other, depending on the load being put on it. I
have tried running all faucets at once for a while. I have tried opening the
faucet valve located in the same compartment and draining water from there.
> >
> > Rick Davis
> > 1993 WLSA
> > Loudon, TN
> > (at HWH in Iowa tonight-getting colder!)
> >
>

11-14-2009, 04:20

Thanks again to all that responded. We are finally in one spot for a few days so will attack your various suggestions soon. I see an eventualchange-out to a single higher pressure pump in the making. Thanks for the pic Pete.

Rick and Marilyn Davis

1993 "freeNeasy"

Loudon, TN

(in Jonesboro, AR)

From: Pete Masterson
To: WanderlodgeForum@yahoogroups.com
Sent: Thu, November 12, 2009 3:25:18 PM
Subject: Re: [WanderlodgeForum] Re: Surging house water pumps