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05-26-2021, 03:53 PM
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#1
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Senior Member
State: California
Posts: 134
THOR #14070
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Very Low Water Pressure - 2019 ACE 30.2
I’m trying to figure out my low water pressure issue. If I had to guess inside the coach we’re at maybe 5 psi. It dribbles from all faucets. The shower is so weak when I turn the handheld part upside down, it barely even sprays up.
• Shore pressure is 50 psi
• After my regulator, it’s still 50 psi
• When using the pump, it’s the same
• Filter screen at the pump is clean
If it were a clogged or kinked line, I would expect that when first turning on the water it would have normal pressure and then immediately drop to low pressure due to the pressure building up past the restriction point, but that doesn’t happen. It’s seems like there is another regulator inside the coach and it’s set to a very low psi.
Any thoughts here?
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05-26-2021, 04:22 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,147
THOR #12751
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Very Low Water Pressure - 2019 ACE 30.2
You need to pull all of the filter / strainer screens from your faucet and shower and flush the lines with as much pressure and flow as you can. Construction debris in the PEX often builds-up in the strainers and kills the flow and wreaks havoc with tankless water heaters as well.
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05-26-2021, 06:08 PM
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#3
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Senior Member
State: California
Posts: 134
THOR #14070
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Thanks, Judge. I was so wrapped up in what it could be I didn’t check the simple things first! The kitchen was full of grainy sand/dust (?) and the bathroom had a single shaving of red pex. The shower doesn’t have a strainer and it’s not something that can be disassembled, so I swapped it with the outside shower. All in all it’s just better, not great, but I think this is all I can get and it’s livable.
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05-26-2021, 06:22 PM
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#4
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Senior Member
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,147
THOR #12751
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Glad its better....
One other thing to check is your onboard fresh water filter. It is possible there is some debris trapped in there as well limiting the flow.
Good luck!
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05-26-2021, 07:26 PM
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#5
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Senior Member
Brand: Thor Motor Coach
Model: 2011 FW Hurricane 33T
State: England
Posts: 1,285
THOR #16471
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Quote:
Originally Posted by motofabio
Thanks, Judge. I was so wrapped up in what it could be I didn’t check the simple things first! The kitchen was full of grainy sand/dust (?) and the bathroom had a single shaving of red pex. The shower doesn’t have a strainer and it’s not something that can be disassembled, so I swapped it with the outside shower. All in all it’s just better, not great, but I think this is all I can get and it’s livable. Attachment 30809
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With the strainers out, how is the flow coming out of the faucets? That should tell you if it is the "faucet flow restrictor" or something before it. Same with the shower wand, you can remove the hose and test the flow. If that is good, you can always try cleaning the wand head by trying to wash or force water 'backwards' thru the head, sometimes you can even see the tiny grains of sand in the shower spray holes, push them backwards, or replace the head.
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06-01-2021, 12:11 AM
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#6
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Junior Member
Brand: Thor Motor Coach
State: Maryland
Posts: 2
THOR #23653
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Water pump pulsating while running faucets
We have a Thor Quantum GS27. I have cleared the strainers for the bathroom faucet and the shower. There was some debris that I cleared. The kitchen faucet has very low pressure and the pump makes a pulsating noise. The motor pulsates whenever we turn any of the faucets on. I’m knew to rving. Help!
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06-01-2021, 07:56 AM
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#7
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Senior Member
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,147
THOR #12751
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Quote:
Originally Posted by MissJudi
We have a Thor Quantum GS27. I have cleared the strainers for the bathroom faucet and the shower. There was some debris that I cleared. The kitchen faucet has very low pressure and the pump makes a pulsating noise. The motor pulsates whenever we turn any of the faucets on. I’m knew to rving. Help!
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You aren't going to have water pressure like you do at home and pulsating is not necessarily a sign of a problem.
That being said....... you can install an Accumulator Tank like this one that will stop the pulsating and help keep the pressure steady.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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06-01-2021, 05:40 PM
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#8
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Junior Member
Brand: Thor Motor Coach
Model: Outlaw 38KB
State: Florida
Posts: 13
THOR #23660
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Low kitchen sink water pressure
One issue for kitchen sink low water pressure occurs if your faucet has an extension hose allowing you to pull faucet head sprayer out. The supply hose under the sink may have a weight attached to the hose assisting you to retract the hose back into the fixture. The weight can cause the flexible supply hose to kink reducing water flow in the fixture. I took my weight off and this resolved the problem. Minimal effort needed to manually retract the hose back into the fixture without the weight.
GM
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06-01-2021, 09:25 PM
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#9
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Senior Member
Brand: Redwood
Model: 36FB
State: Arizona
Posts: 1,766
THOR #3610
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Hopefully you're using something similar to this as your regulator?
NOT THIS! This is called a regulator, pictured below, but is actually a restrictor, it restricts the flow regardless of pressures rather regulate the pressure. They are also famous for sticking & nearly shutting off the flow.
Best option to anyone using this type is to toss it & use a "regulator" if you're not doing so already.
For better shower head function replace those POS factory shower heads with an Oxygenics head, it mixes air with the stream to feel like more pressure while using less water.
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Fulltimed 10+ years
Sold '13 Thor Redwood 36 FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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06-12-2021, 12:58 PM
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#10
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Senior Member
Model: 25.2 Axis
State: Arizona
Posts: 839
THOR #3471
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Does it do any harm to go from a 3.3 water pump to a 5 gpm other than running out of water faster Thor axis
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06-12-2021, 01:12 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: 2011 FW Hurricane 33T
State: England
Posts: 1,285
THOR #16471
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Quote:
Originally Posted by Hugh.vines@att.net
Does it do any harm to go from a 3.3 water pump to a 5 gpm other than running out of water faster Thor axis
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No harm, just it may pulsate faster as the pressure would build up faster and then shut off sooner.
As mentioned, an accumulator would reduce the pulsating significantly or some have mentioned a pump with a variable speed motor, now that sounds 'quiet'.
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06-12-2021, 02:35 PM
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#12
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Senior Member
Model: 25.2 Axis
State: Arizona
Posts: 839
THOR #3471
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What size accumulate tank would you recommend
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06-12-2021, 04:03 PM
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#13
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Senior Member
Brand: Thor Motor Coach
Model: 2011 FW Hurricane 33T
State: England
Posts: 1,285
THOR #16471
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Accumulator Tank
Well whatever you are comfortable with. The bigger the more storage it has BUT bigger also means more mass and so it would have to be secured properly as H2O is heavy. The RV styled ones are typically less than a quart... I hope someone that has one could chime in and recommend a size, so far I can live with the pulsing but a tank is on the horizon.
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06-12-2021, 04:16 PM
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#14
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Senior Member
Model: 25.2 Axis
State: Arizona
Posts: 839
THOR #3471
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Thanks
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