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04-18-2021, 02:34 PM
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#1
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Weekend Camper
Join Date: Aug 2020
Location: North Carolina
Posts: 16
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Adding an LP gauge
Simple add to keep an eye on both tank’s level.
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2012 Slingshot GT29BH
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04-18-2021, 08:30 PM
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#2
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Gone Traveling
Join Date: Feb 2016
Location: Texas
Posts: 1,392
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Quote:
Originally Posted by 77HORNET
Simple add to keep an eye on both tank’s level.
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Good luck with that!
I bought 2 with the same gauge that screwed onto the tanks, after about 30+ days gave them away. They showed full right up to the point it was empty, 1 day full the next day empty, the changeover regulator was just as informative.
I know others that use the Mopeka gauge system that have claimed they work much more accurate than the one shown, I have no experience with it.
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04-19-2021, 03:39 AM
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#3
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Weekend Camper
Join Date: Aug 2020
Location: North Carolina
Posts: 16
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I previously used this gauge on my other trailer. It’s tried & true.
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2012 Slingshot GT29BH
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04-19-2021, 08:09 AM
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#4
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Weekend Camper
Join Date: Feb 2021
Location: WA
Posts: 45
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Quote:
Originally Posted by 77HORNET
It’s tried & true.
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Any particular brand/model/link?
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2014 Toyota Sequoia
2018 Sunset 239BH
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04-19-2021, 09:04 AM
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#5
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Seasonal Camper
Join Date: Jul 2017
Location: Saskatchewan
Posts: 417
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I agree with the statement ''good luck with that'' If by chance you ever get lucky enough to notice a drop in pressure, that tank is so close to empty, your tank selector will be switching tanks for you. Had one once upon a time, never ever did catch it that it showed a low tank, lol. Always full or empty which has it's own warning system built right into it, lol.
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2011 ST25RB SunSet Trail - RESERVE
Silverado LT Z71
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04-19-2021, 10:16 AM
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#6
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Gone Traveling
Join Date: Feb 2016
Location: Texas
Posts: 1,392
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I just noticed in the picture you have it installed downstream of the changeover regulator so it's reading the low pressure/regulated side not the tank pressures. Curious how that could tell you anything, "tried" or "true", other than the tank valve is open?
In that location it will show green, as will the CO regulator, when the tank empties it will show red, as will the CO regulator, when you turn the CO lever to the full tank they will both show green again..
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04-19-2021, 10:33 AM
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#7
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Weekend Camper
Join Date: Aug 2020
Location: North Carolina
Posts: 16
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I tried to delete post until I put it upstream before anyone noticed that. Lol
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2012 Slingshot GT29BH
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04-19-2021, 04:26 PM
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#8
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Site Team
Join Date: Sep 2012
Location: PA
Posts: 5,724
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I just got the Mopeka LP tank monitors and I will be installing them tomorrow.
It sends an ultrasonic signal through the tank to measure the LP, then sends the results to the inside gauge and your app on your cell phone.
Previously I used a luggage scale to weigh each tank. A 30lb tank empty is about 24lbs and a full tank is about 54lbs.
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Mark & Susan
Lehighton, Pennsylvania
EAGLE HT FIFTH WHEEL | 30.5CKTS - '13 Ford F150 SCREW - PullRite Superslide - Roadmaster Active Suspension
Member - "Northeast Adventures RV Rally Group" & "Mason-Dixon Bunch"
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04-19-2021, 04:50 PM
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#9
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Site Team
Join Date: Jun 2015
Location: mo
Posts: 2,110
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Quote:
Originally Posted by 77HORNET
Simple add to keep an eye on both tank’s level.
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Just a quick question - do you have both tank valves open? If so the gauge would always show green as long as the change over valve is working properly. That gauge mounted between the tank and the regulator/change over valve would work better but you would need 2 gauges then. But the indicator on the change over valve would give you the same information.
By the way both tank valves should be open for the change over valve to work properly and keep you from running out of gas then having to turn the other tank on. After a while you will learn your campers usage and when to check the change over indicator.
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2009 Seville VF32KS
2019 GMC Sierra 3500HD Crew Cab Denali.
6.6 Diesel standard box.
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04-20-2021, 11:20 AM
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#10
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Family Vacation Member
Join Date: Sep 2019
Location: SK
Posts: 180
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Ive been trying to find these for years. But just actually spoke to our local propane recert center. He said the floats were breaking off in the tanks if you travelled without tanks being full. And possibly even during removing to refill.
So I gave up the idea of having them installed.
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2014 29MK
Victron Energy inverter/charger, 1240w solar
550ah LifePo4, Microair Easy Start,RVLocks (keyless)
Airborne Elite Sidewinder pin, Maxx air 7500 Fan
2015 GMC LTZ,6.2 Gas, Short Box, Firestone F3 air ride.
Bilstein Shocks
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04-26-2021, 02:05 PM
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#11
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Site Team
Join Date: Sep 2012
Location: PA
Posts: 5,724
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Finally installed the Mopeka LP tank monitors. Very simple install, held on by two strong magnets and I added Gorilla tape. Had to sand a little rust off the bottom of one tank for sensor to make a good read.
A monitor installs inside wherever you like.
A good feature is there is an App for my cell phone to read the sensors.
Will see how they hold up going down the road this week to the campground.
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Mark & Susan
Lehighton, Pennsylvania
EAGLE HT FIFTH WHEEL | 30.5CKTS - '13 Ford F150 SCREW - PullRite Superslide - Roadmaster Active Suspension
Member - "Northeast Adventures RV Rally Group" & "Mason-Dixon Bunch"
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04-29-2021, 03:15 PM
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#12
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Weekend Camper
Join Date: Mar 2009
Location:
Posts: 18
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I just pour a cup of boiling water down the side and where there is a temp change down, that shows the level. Old tech but it works.
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04-29-2021, 05:07 PM
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#13
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Family Vacation Member
Join Date: Jul 2020
Location: WA
Posts: 135
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I've been using the Mopeka for about a year now and absolutely LOVE it! They may be the most accurate sensors on my whole rig.
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Tony & Lynne
Whidbey Island, WA
2021 Sunset Trail SuperLite SS212RB
2019 Ford F-350 FX-4 Crew cab, 6.2L gas
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04-29-2021, 07:54 PM
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#14
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Weekend Camper
Join Date: Jul 2009
Location: Okotoks, AB
Posts: 44
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Quote:
Originally Posted by 77HORNET
It’s tried & true.
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Sorry, but that's just not correct. All other things being equal, the pressure in a propane tank remains constant as long as there is still more than a trace of liquid propane in there. It's physics.
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2010 Cruiser CF30QB
2003 GM 2500HD 8.1/A
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04-30-2021, 11:37 AM
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#15
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New Camper
Join Date: Apr 2018
Location: Texas
Posts: 1
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Ultrasonic LP gauge
Back in 2018, I purchased an ultrasonic detector to test. It has a magnetic transducer that sits on the bottom of the tanks. I compared it with the weight of the tank as the tank level decreased and it was quite accurate. I have been using them since. It also has an app for my cell phone which is very handy. I purchased them at Amazon.com. https://www.amazon.com/Mopeka-024-20...9803812&sr=8-2
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05-01-2021, 11:34 PM
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#16
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Weekend Camper
Join Date: Aug 2020
Location: North Carolina
Posts: 16
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Quote:
Originally Posted by drzaius
Sorry, but that's just not correct. All other things being equal, the pressure in a propane tank remains constant as long as there is still more than a trace of liquid propane in there. It's physics.
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So how do I delete this thread?
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2012 Slingshot GT29BH
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05-02-2021, 07:33 AM
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#17
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Site Team
Join Date: Dec 2007
Location: WI.
Posts: 9,162
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To late for you to delete it.
Besides, there is to much other info that would be lost if the thread was deleted.
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05-23-2021, 08:54 PM
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#18
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Weekend Camper
Join Date: Jun 2020
Location: CA
Posts: 50
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Lp Gauges
Great idea! I just installed a gauge on each tank on line side. 10.00 each on Amazon. Hated the red regulator indicator. These screw onto your existing tank valve and easy removal for filling. Also upgraded the rubber propane supply hoses to braided stainless steel line for peace of mind.
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2019 sunset trail 253RB
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