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Loss of Water Pressure


Mcmac
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Good afternoon folks,

We were able to take our new to us Ollie out this weekend. We received quite the surprise when we went to use the fresh water... it smelled bad... really bad.

So I googled and found that we needed to sanitize the fresh water tank. Followed the instructions and pulled bleach water in from the boondock port in the back. That worked fine. Following instructions, I ran the bleach water through all the faucets and then after 15 min attempted to drain the tank through the drain value. While a little bit of water would trickle out it was way too slow, so I closed the faucets inside and closed the drain value to normal up the system. 
At this point, I thought I'd just open the faucet and cycle the fresh water into the gray water tank. Unfortunately, I now have little to no water pressure in either of the faucets or in the toilet. The water pump seems to be running fine.

 

Any ideas on what I'm doing wrong or what may have happened to kill the water pressure?

 

Thanks for you help

 

Mike

Mike and Deb.  2014 Legacy Elite II  Hull Number 061 Twin Bed - Tow Vehicle 2017 Toyota Tundra

 

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Mike,

After putting the water valves in Boondocking mode to draw the bleach water through the rear port, did you change the valves back to the normal mode so, the pump pulls from the fresh water tank?

Andrew

Andrew, Carianne and Buffy | San Diego, CA


2019 Legacy Elite II Hull #468 "California Burrito" | 2018 BMW x5 35d 

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You may have an airlock in the hose running to the pump. Normally a little air won’t hurt but a lot of air will cause complete loss of suction and pressure. The pump will run flat out and nothing else happens.  You need to: 

Close the valve going to the faucets.

Open the valve going back to the tank.

That will let the system flow freely, recirculating from tank straight back to tank with no restrictions, and should remove any air in the pump lines in a minute or two. 

While you are in there, turn off the system and remove your pump strainer/ filter to see if it is plugged with plastic shavings (construction debris). It is just forward of the pump assembly. This is pretty normal at first. One owner found a kink in the suction line to the pump was blocked by those shavings, he had to use a wire object to remove them.

Good luck.

PS, please add a signature with your hull number, it helps us to understand what systems are installed, since there are evolutionary changes through the years. Also, if you want to easily use those valves, label the direction of flow and where the lines go, like this (Hull 218) - yours might be different. I am a little surprised that they don’t do this at the factory.

0A6D1521-16EF-4182-BEAE-D1D9E7F97ED0.jpeg.192157ecf8bd6956d2f773c3742f7ee5.jpeg

John Davies

Spokane WA

Edited by John E Davies
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"Mouse":  2017 Legacy Elite II NARV (Not An RV) Two Beds, Hull Number 218, See my HOW TO threads: https://olivertraveltrailers.com/topic/john-e-davies-how-to-threads-and-tech-articles-links/

Tow Vehicle: 2013 Land Cruiser 200, 33" LT tires, airbags.

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Like Andrew, I suspect that you just have a valve turned wrong. Look on the underside of the hatch over the valves and there should be a diagram showing the correct orientation. If not, then your owners’ manual should have one.  If your pump is running constantly then it’s likely that it’s the fill valve on the lower right that’s wrong, and the pump is just cycling water back into the tank. 

If that doesn’t do the trick, then check the filter on the pump as it may be clogged. It’s the clear plastic container connected to the pump.

Another unlikely cause could be a broken valve.  And always a chance that there’s not actually water in the tank. 😝 

It’s no surprise that your tank drain just dripped - that seems to be a common problem that has been discussed here more than once. One good solution is to do just as you thought and just run the water into the grey tank. 

Edited by Overland

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23 minutes ago, Overland said:

What’s the grey box on the right?  I don’t have one of those. 

That is the moisture cover for the failure prone circuit board (igniter circuit) for the standard Suburban HWH. It failed once already a couple of months after delivery. That is a horrible location for it, right under a pressurized water hose, but at least it is easy to access if it fries again .....l  I just never got around to moving it to a more logical location ☹️
 

John Davies

Spokane WA

  • Thanks 1

"Mouse":  2017 Legacy Elite II NARV (Not An RV) Two Beds, Hull Number 218, See my HOW TO threads: https://olivertraveltrailers.com/topic/john-e-davies-how-to-threads-and-tech-articles-links/

Tow Vehicle: 2013 Land Cruiser 200, 33" LT tires, airbags.

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1 hour ago, AndrewK said:

Mike,

After putting the water valves in Boondocking mode to draw the bleach water through the rear port, did you change the valves back to the normal mode so, the pump pulls from the fresh water tank?

Andrew

Andrew,

 

Yes, put back into the normal mode where they were prior to pulling in the bleach.

 

Thanks,

Mike

Mike and Deb.  2014 Legacy Elite II  Hull Number 061 Twin Bed - Tow Vehicle 2017 Toyota Tundra

 

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1 hour ago, John E Davies said:

You may have an airlock in the hose running to the pump. Normally a little air won’t hurt but a lot of air will cause complete loss of suction and pressure. The pump will run flat out and nothing else happens.  You need to: 

Close the valve going to the faucets.

Open the valve going back to the tank.

That will let the system flow freely, recirculating from tank straight back to tank with no restrictions, and should remove any air in the pump lines in a minute or two. 

While you are in there, turn off the system and remove your pump strainer/ filter to see if it is plugged with plastic shavings (construction debris). It is just forward of the pump assembly. This is pretty normal at first. One owner found a kink in the suction line to the pump was blocked by those shavings, he had to use a wire object to remove them.

Good luck.

PS, please add a signature with your hull number, it helps us to understand what systems are installed, since there are evolutionary changes through the years. Also, if you want to easily use those valves, label the direction of flow and where the lines go, like this (Hull 218) - yours might be different. I am a little surprised that they don’t do this at the factory.

0A6D1521-16EF-4182-BEAE-D1D9E7F97ED0.jpeg.192157ecf8bd6956d2f773c3742f7ee5.jpeg

John Davies

Spokane WA

Thanks John... good info.

 

Mine is an early unit, hull 061. My pluming looks quite a bit different than the pic you've attached.

Your point thought about the airlock sounds like a strong possibility as it worked fine before pulling in the bleach and probably some air. I'll check it out, but it will be a few days before I get around to it.

Appreciate your suggestions.

 

Mike

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Mike and Deb.  2014 Legacy Elite II  Hull Number 061 Twin Bed - Tow Vehicle 2017 Toyota Tundra

 

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Mike, as your Oliver is one of the early ones, it likely has two 3-way valves instead of the 4 on-off valves of later builds. The is the original (as delivered) valves in our Hull # 050. Maybe this will help trouble shoot your valve positions.

DSC_0454-1.thumb.JPG.c4bd235711adf9b040d9d87b746b2efa.JPG

This a photo of the later valve layout. They both do the same thing, but the factory altered their manufacturing plan.

IMG_2053-1.thumb.JPG.0110b8348d4a0814f879174cdb3c4671.JPG

I removed my manual valves and replaced them with electric ones. Now a flip of a switch takes me from "Normal" to "Auxiliary".

IMG_1948-1.thumb.JPG.f58dc5223962693e2ae15409d5a4f85d.JPGIMG_1985-1.thumb.JPG.6d31daff960b12d00c4998a968d4a120.JPG

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Steve, Tali and the dogs: Reacher, Lucy and Rocky plus our beloved Storm and Maggie (both waiting at the Rainbow Bridge) 2008 Legacy Elite I - Outlaw Oliver, HULL NUMBER: 0026 2014 Legacy Elite II - Outlaw Oliver, HULL NUMBER: 0050 2017 Silverado High Country 2500HD Diesel 4x4 

 

      ALAKAZARCACOCTDEFLGAIDILINIAKSKYLAMEMDMA       ABBCMBNSYTsm.jpg

 

 

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On 8/9/2020 at 9:06 PM, ScubaRx said:

Mike, as your Oliver is one of the early ones, it likely has two 3-way valves instead of the 4 on-off valves of later builds. The is the original (as delivered) valves in our Hull # 050. Maybe this will help trouble shoot your valve positions.

DSC_0454-1.thumb.JPG.c4bd235711adf9b040d9d87b746b2efa.JPG

This a photo of the later valve layout. They both do the same thing, but the factory altered their manufacturing plan.

IMG_2053-1.thumb.JPG.0110b8348d4a0814f879174cdb3c4671.JPGimageproxy.php?img=&key=809e4435833f1d2a

I removed my manual valves and replaced them with electric ones. Now a flip of a switch takes me from "Normal" to "Auxiliary".

imageproxy.php?img=&key=809e4435833f1d2aimageproxy.php?img=&key=809e4435833f1d2aimageproxy.php?img=&key=809e4435833f1d2aIMG_1948-1.thumb.JPG.f58dc5223962693e2ae15409d5a4f85d.JPGIMG_1985-1.thumb.JPG.6d31daff960b12d00c4998a968d4a120.JPG

Thanks Scuba,

Yes, my plumbing looks like the older version you've posted. I'll have to look into the electric valves you're using. Looks like a slick way to change from "normal" to "Aux" mode. Thanks for the info.

Mike and Deb.  2014 Legacy Elite II  Hull Number 061 Twin Bed - Tow Vehicle 2017 Toyota Tundra

 

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On 8/9/2020 at 10:35 PM, John E Davies said:

That is the moisture cover for the failure prone circuit board (igniter circuit) for the standard Suburban HWH. It failed once already a couple of months after delivery.

Do you know if Suburban is still using the same boards on new units? We opted for the Suburban due to