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10-19-2005, 04:26 PM
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#1
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Winnebago Master
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
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Since we are usually 'plumbed' in to water at campsites, this isn't a huge problem, but an annoyance when running on tank water.
The water pressure surges quite a bit in the shower in sync with the pump changing speeds. Water pressure out of the other faucets is a normal constant stream. I took out the flow restrictor in the shower wand (like I always do on any of my plumbing fixtures), but that shouldn't have anything to do with the issue.
Ideas anyone?
__________________
--John
2005 Horizon 40AD, 2005 Jeep Liberty CRD
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10-19-2005, 04:26 PM
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#2
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Winnebago Master
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
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Since we are usually 'plumbed' in to water at campsites, this isn't a huge problem, but an annoyance when running on tank water.
The water pressure surges quite a bit in the shower in sync with the pump changing speeds. Water pressure out of the other faucets is a normal constant stream. I took out the flow restrictor in the shower wand (like I always do on any of my plumbing fixtures), but that shouldn't have anything to do with the issue.
Ideas anyone?
__________________
--John
2005 Horizon 40AD, 2005 Jeep Liberty CRD
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10-19-2005, 04:59 PM
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#3
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Winnebago Owner
Join Date: Oct 2004
Location: Tucson, Arizona
Posts: 101
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Blockage in the strainer
Sucking air on the intake side
Pump defective
Is the accumulator still in the circuit John?
__________________
Rick Buddrus
03 Horizon 39QD
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10-20-2005, 01:47 AM
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#4
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Winnebago Master
Join Date: Jul 2003
Location: Seaford, VA
Posts: 1,046
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John, you know I am not as astute or mechanically inclined as other members.
But , it seems to me that if you have a constant flow of water, then the pump should maintain that flow and not speed up or slow down. The accumulator that Rick mentioned could need air. Yet I don't quite understand the surging when the flow is constant. Try replacing the restrictor and see what happens.. Good Luck Jim
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Happy Trails! ICHN2GO, Seaford VA,
06, 34 Newmar Ventana
02 Jeep Liberty
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10-20-2005, 01:57 AM
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#5
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Winnebago Master
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
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Jim and Rick,
I have the 5.7 Shurflow with the electronic sensor which doesn't use an accumulator tank (which was a surprise to me.)
The shower flow would slow to heavy dribble,then speed up to normal, then repeat. With an open faucet, the pump should run all of the time. I also noticed that if you cut the flow way back on a faucet, it will also 'pulse.' I'm pretty sure the strainer is clean, but that is something to check. Perhaps the obvious is a bad pump; I might give Shurflow a call. Thanks guys.
__________________
--John
2005 Horizon 40AD, 2005 Jeep Liberty CRD
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10-20-2005, 04:20 AM
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#6
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Winnebago Owner
Join Date: Oct 2004
Location: Tucson, Arizona
Posts: 101
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John,
When I installed the 5.7 in my 03, I left the accumulator in the circuit. Always wondered if Winni was going to deliver the newer coaches with it or without it. Considering the symptoms you described, I am strongly thinking the pump is at fault. Giving the folks at Shurflow at shot at it is the best path me thinks. How's that Datastorm doing?
__________________
Rick Buddrus
03 Horizon 39QD
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10-20-2005, 04:24 AM
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#7
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Winnebago Master
Join Date: Dec 2002
Location: Sarver, PA/Crystal River, FL/Shelocta, PA
Posts: 1,196
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I have the 5.7 in my coach and it works great. No pressure problems. Enough pressure to work the messuage feature on the shower head.
You must have a restriction somewhere. Have you checked the Shurflo filter located on the pump?? There is also the remote possiblity that there is something in your fresh water tank blocking the outlet. I have heard of some of the plug cutouts being left in the tank.
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Sarver, PA/Crystal River, FL/Shelocta, PA · FMCA 335149 · W3TLN 2005 Suncruiser 38R · W24, no chassis mods needed · 2013 Honda Accord EX-L · 2008 Honda Odyssey EX-L
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10-20-2005, 06:10 AM
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#8
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Winnebago Master
Join Date: Dec 2002
Location: Sarver, PA/Crystal River, FL/Shelocta, PA
Posts: 1,196
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The 5.7 does not use an accumulator tank.
The 5.7 is variable speed and the little micro-processor computer determines the speed by the flow requirements.
The 5.7 is capable of 5.5 gallons per minute and a pressure up to 65 PSI.
They may be a problem with your pump. Shurflo will graciously replace it.
__________________
Sarver, PA/Crystal River, FL/Shelocta, PA · FMCA 335149 · W3TLN 2005 Suncruiser 38R · W24, no chassis mods needed · 2013 Honda Accord EX-L · 2008 Honda Odyssey EX-L
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10-20-2005, 06:17 AM
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#9
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Winnebago Camper
Join Date: Oct 2004
Location: Walnut, Ca.
Posts: 36
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If your shower head has a adjustable setting, from soft to pulsating, turn the adjustment off soft until a steady stream is provided. Seems the "restriction" has been found in the shower head because it doesn't demand (allow) full pump output.
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Voyage 33V
Ford V10
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10-20-2005, 06:31 AM
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#10
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Winnebago Master
Join Date: Dec 2002
Location: Sarver, PA/Crystal River, FL/Shelocta, PA
Posts: 1,196
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Take the tank out. It will confuse the micro-processor on the 5.7.
Winnebago does not use a tank with the 5.7 and Shurflo recommends that none is needed.
__________________
Sarver, PA/Crystal River, FL/Shelocta, PA · FMCA 335149 · W3TLN 2005 Suncruiser 38R · W24, no chassis mods needed · 2013 Honda Accord EX-L · 2008 Honda Odyssey EX-L
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10-20-2005, 07:38 AM
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#11
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Winnie-Wise
Join Date: Mar 2000
Location: Butler, PA
Posts: 283
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You've got good advice. Remove the accumulator tank with the variable speed pumps. They are designed to vary their speed rather then cycle on and off with flow demands. The accumulator tank is used with a cycling pump to steady the flow.
When I installed my variable speed pump, I simply let the air out of the accumulator tank. Letting the air out was easier than removing the tank, and solved the surging problem you described. Letting the air out is also reversible.
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Joe & Shelly, Justin, Tyler, Alyssa | Butler PA 2008 Tiffin Allegro Bus 43QRP|Cummins 425|Honda CRV
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10-20-2005, 08:09 AM
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#12
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Winnebago Owner
Join Date: Oct 2004
Location: Tucson, Arizona
Posts: 101
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Sorry Tom but the accumulator tank is not confusing my 5.7 and it has been in there a year now. Winni isn't using one on the new coaches because the 5.7 does not require it and it would be a waste of money on their part to put one in. It was just easier for me to leavce mine in the circuit and it seems to be cohabitating with the 5.7 fairly well.
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Rick Buddrus
03 Horizon 39QD
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10-20-2005, 08:37 AM
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#13
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Winnebago Owner
Join Date: Jun 2005
Posts: 134
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John:
On my 2005 Vectra I found that I had two water restrictors on the shower. One was just before or after the manual shut off near the area the hose to the shower head attaches to the wall. The second one was in the shower head itself. Make sure you don't have two also. That was my problem with low and surging volume fromt he shower.
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https://www.irv2.com/photopost/data/500/kenbtsigpic.jpg
2005 Winnebago Vectra 36RD
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10-20-2005, 02:06 PM
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#14
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Winnebago Master
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by kenbt:
John:
On my 2005 Vectra I found that I had two water restrictors on the shower. One was just before or after the manual shut off near the area the hose to the shower head attaches to the wall. The second one was in the shower head itself. Make sure you don't have two also. That was my problem with low and surging volume fromt he shower. </div></BLOCKQUOTE>Oh, how about that! BINGO! I removed the check valve Winnie installed with the shower shut-off valve and we have pressure and no surging I am having a long, vigerous and hot shower tonight.
Thanks!
__________________
--John
2005 Horizon 40AD, 2005 Jeep Liberty CRD
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10-21-2005, 03:55 AM
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#15
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Winnebago Owner
Join Date: Jun 2005
Location: Indiana
Posts: 91
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Sometimes we create our own problems, don't we John?
There really is no reason to remove the restirctors, the 5.7 will do a fine job with them there. Besides. your going to use a whole lot more water. If you ever dry camp, you'll wish you had the resirictor, s, in there.
As far as the accumilator tank is concerned, if you have one in line, thats fine also. ShurFlo has stated, that it won't hurt a thing and doesn't effect the system.
I installed the 5.7 two years ago, replacing the cheezy 2.8, which worked almost OK, but more pressure helped. The trade off was, yea we got more pressure, but we empty the water tank real quick.
These forums are great for ideas and maybe a quick awakening to have you remember what you may have caused when you were dilly dalling around, but nothing matches the professional advice you'll get from the manufacture of the item your having problems with. If it's not a week end or a late night, go to the manufacture's web site and get your contact information and go direct. You won't regret it, and thats what their web sites are for.
Radarr
__________________
07 Monaco Dynasty 43Q4
"An Unbelievable Coach"
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10-21-2005, 04:09 AM
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#16
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Winnebago Master
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
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Oh for sure we are aware of the potential increased water useage. Now it is MY choice how much water we use, not a government restriction. I am smart enough to manage my own resources, thank you (not ragging on you, but big brother.)
When we cruised the caribbean on our sailboat for 15 months, we were "boondockers" the entire time except for about 20 days spread out here and there at marinas. We had to be great stewards of our resources, especially water and diesel. Sometimes we were anchored out 100 miles from nowhere - there were no Wallyworlds (or stores period) available We got real good at taking showers with a gallon of water or less (we carried about 90 gallons.)
I'm not sure we have a problem with the pump now that both of the restrictors are out of the picture.
__________________
--John
2005 Horizon 40AD, 2005 Jeep Liberty CRD
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10-21-2005, 04:47 AM
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#17
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Winnebago Owner
Join Date: Oct 2004
Location: Tucson, Arizona
Posts: 101
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John,
Glad you solved the problem by removing the restrictors. I remember removing one in the shower head some time ago and it was probably before the 5.7 went in. Probably why I have not experienced the surging issue. Sounds like we have a bit more pump running than the plumbing wants to support. It's your coach and your water. If you want to have a forcefull shower in the morning then so be it.
__________________
Rick Buddrus
03 Horizon 39QD
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