Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×

Go Back   Thor Forums > Thor Motorcoach & Motorhome > Class C and Super C Motorhomes
Click Here to Login
Thread Tools Display Modes
Old 05-06-2021, 11:11 PM   #1
Brand: Still Looking
State: Massachusetts
Posts: 88
THOR #22385
Water pressure isssue

I have a four winds 2021 28z the shower has low pressure with City water hookup. When I use the tank with pump pressure is fine .Iím using a 40- 50 pressure regulator. Which Iíve used in previous travel trailer with no issues. Purchased a brand new one same problem. Is this a class c issue can I eliminate the regulator. Should I purchase an adjustable one ? Any suggestions appreciated.

Sullyd59 is offline   Reply With Quote
Old 05-06-2021, 11:19 PM   #2
Senior Member
Judge's Avatar
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,154
THOR #12751
Are you having issues with any city water hookup or just a specific one?

While a regular is good for making sure the water pressure is at a desired level, it won't make up for a water supply that has poor pressure (<40 PSI).

If you know you have a city water supply capable of 50 PSI and are having issues, I would look at the city water inlet and the check-valve for restrictions.
Judge is offline   Reply With Quote
Old 05-06-2021, 11:20 PM   #3
Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,884
THOR #6826
Well itís not a class C thing. If youíre getting good pressure and flow on the pump but not on city water itís clearly not a shower problem. Iíd start by examining your city water inlet. There probably is a screen in the fitting that might be clogged and then there is a one way valve the could, I suppose, be damaged or stuck. Do you have a filter on your inlet. If so try removing it. Also, 45 - 50 is on the low side. I have an adjustable regulator and have it set to about 55. My flow on city water is less than on the pump too but in my case itís still adequate.
Pete'sMH is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.

All times are GMT. The time now is 03:19 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2