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Old 01-07-2021, 05:07 AM   #1
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2019 30' Classic
2012 25' FB Eddie Bauer
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Water pressure

I have finally reached the stage, after two years, where all but one of the manufacturing defects in my Airstream have been corrected. This forum has helped me fix everything myself which is fortunate as a series of Airstream dealers were unable to "find the source of the problem" for everything from Alde to water pressure (couldn't think of a Z item.

The final issue is the anemic water pressure in the trailer. There is excellent water pressure at the hose bib, fair water pressure in the bathroom sink and toilet, poor water pressure in the shower, and barely a dribble at the kitchen sink.

I know people have found their pressure regulators and backflow preventers installed backward by the factory. This doesn't seem to be my problem as I do have flow.

I have looked for a flow reducer in the showerhead and kitchen sink but haven't found one yet. It sort of feels like that kind of problem, a restriction someplace. Thoughts and guidance would be appreciated.
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Old 01-07-2021, 05:19 AM   #2
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Have you removed and cleaned the aerators?
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Old 01-07-2021, 05:43 AM   #3
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Also, my kitchen sink has small chrome shutoff valves tucked up where they are hard to see. It sounds silly but make sure those valves are fully open.
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Old 01-07-2021, 06:37 AM   #4
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Originally Posted by GCinSC2 View Post
Have you removed and cleaned the aerators?
There are no aerators on the showerhead. I can not figure out how to remove the aerator in the sink. Any hints?
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Old 01-07-2021, 06:38 AM   #5
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Also, my kitchen sink has small chrome shutoff valves tucked up where they are hard to see. It sounds silly but make sure those valves are fully open.
Larry
Thanks Larry. Yes, I checked those and cycled the valves to be sure they weren't clogged somehow.
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Old 01-07-2021, 08:00 AM   #6
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There are no aerators on the showerhead. I can not figure out how to remove the aerator in the sink. Any hints?
My shower head has screens or reducers or whatever up in the handle end of the handheld head. Remove and see if they are there. pop them out and clean.
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Old 01-07-2021, 08:05 AM   #7
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Originally Posted by Froglips View Post
I have finally reached the stage, after two years, where all but one of the manufacturing defects in my Airstream have been corrected. ...

The final issue is the anemic water pressure in the trailer. There is excellent water pressure at the hose bib, fair water pressure in the bathroom sink and toilet, poor water pressure in the shower, and barely a dribble at the kitchen sink.
Has this problem existed since you bout the trailer or is a new problem?
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Old 01-07-2021, 08:26 AM   #8
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I pulled the in-line shutoff valve from the showerhead. The orifice was ridiculously small and I never use it because it always squirts out a shot of cold water before the hot. That made a small but noticeable difference in the shower. I remain convinced there is a restriction somewhere downstream of the bathroom sink.

The kitchen sink faucet has two filters. One where the head connects to the hose. The other at the head. The first one is clean. It is not removable, unlike the filter in the sink faucet. It can be popped out to clean, which I have. These inline screens are a waste and just cause flow restrictions. The aerator/filter is not removable in any way I can see. I soaked the head in vinegar but it didn't change the flow.
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Old 01-07-2021, 08:27 AM   #9
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There are no aerators on the showerhead. I can not figure out how to remove the aerator in the sink. Any hints?
Your Owners Manual has the part numbers and mfgr for the faucets. I did a quick search and found the lav faucet uses a key to R&R the aerator.

https://www.us.kohler.com/us/catalog...5554&diagram=2

That's a start, you can continue the research if you find a clogged aerator in the lav.

Pressure is a constant throughout a system post any regulation systems. Restricted flow, maybe mineral build up?
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Old 01-07-2021, 08:30 AM   #10
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Quote:
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Has this problem existed since you bout the trailer or is a new problem?
Problem with the trailer since new. Could be a design flaw as there are so many in the new Classics.
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Old 01-07-2021, 08:39 AM   #11
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Might as well inspect that little inlet screen where you attach the water hose.
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Old 01-07-2021, 09:31 AM   #12
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Why not unscrew the head, point the hose end into the sink and turn on the water to see what kind of flow?
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Old 01-07-2021, 11:17 AM   #13
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There are no aerators on the showerhead. I can not figure out how to remove the aerator in the sink. Any hints?
Remove the aerators by using a pair of channel locks. Protect the cup that holds the screen with a rag so you don't damage it. Righty titie, lefty loosey.
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Old 01-07-2021, 11:35 AM   #14
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Remove the aerators by using a pair of channel locks. Protect the cup that holds the screen with a rag so you don't damage it. Righty titie, lefty loosey.
Flynavy,

Generally correct for many but I checked by using the (see link in post 9) lav sink faucet model and this Kohler until we see otherwise uses a key handle to reach up in there to R&R the aerator. It looks recessed into the spout.

Gary
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Old 01-08-2021, 05:29 AM   #15
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Thanks for all the suggestions.

Lav faucet-found a tool that would insert into the aerator removal slot. Pulled the aerator assembly. There is a small plastic fine screen on the backside of the aerator assembly that can be removed. I did. I have a large two-stage water filter on the trailer. I removed and cleaned the aerator. I turned on the lav faucet without the aerator installed. There was a surprising amount of pressure, significantly less with the aerator reinstalled.

Shower-as I noted previously, I removed the in-line shutoff valve. There is a screen between the shutoff valve and the showerhead. When I removed the shutoff valve, I swapped out the screened gasket for a plain gasket. Slightly better pressure. Again, I turn on the shower without the head connected. Very strong, narrow stream. There is a large pressure drop across the showerhead.

The kitchen sink faucet-I removed the faucet head. Again, the pressure and flow without the head attached were very good. There was a screen as part of the gasket between the head and the hose. I could not remove the aerator on the faucet head. I attempted to backflush it after soaking it in vinegar. The flow with the head reinstalled is still disappointing.

Out of ideas at this point. Looks like Airstream chose some high-pressure drop fixtures. So many poor design choices.
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Old 01-08-2021, 05:54 AM   #16
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I think that some like the high pressure drop fixtures because it is an imposed water conservation measure, meaningless if you camp with full hookups. However, the saving grace is that there are many replacement heads for these things that give full flow. Just one of those things you have to spend money on.
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Old 01-08-2021, 06:11 AM   #17
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Strictly a guess on my part but thinking there could be debris in the line from the point with good flow to the next. I don't have the plumbing diagram so guessing. I hope you find it soon.

Jim
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Old 01-08-2021, 10:13 AM   #18
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For the shower, I would recommend this. One of the first upgrades on my 27FB, and it works really well at increasing the pressure while using less water.
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Old 01-09-2021, 09:05 AM   #19
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For the shower, I would recommend this. One of the first upgrades on my 27FB, and it works really well at increasing the pressure while using less water.
X2

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Old 01-11-2021, 05:20 PM   #20
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You’re very fortunate. My 2018 Classic 33 is in for our 75th repair. This time, two shades broken, serious floor squeak, automatic awning stopped working and needs total replacement, solar not charging batteries and 9 other misc. issues. Since 2018, we’ve been to JC 3 times, John’s RV in SC twice and Southland RV 6-7 times (currently at Southland for last three months). JC granted me an additional 6 months warranty (they agreed that I have had more than my share of problems) but now are refusing to cover any of the issues being fixed (broken shades, squeak and awning). We’re gonna dig deep again for repairs and then sell. We’ll get a new rig, but it sure won’t be an Airstream.
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