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05-14-2020, 06:23 AM
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#1
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Member
Join Date: May 2020
Location: Cincinnati
Posts: 31
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Fresh water tank drain
I have the 2020 Passport 3100QB with a 43 gallon fresh water tank and it takes forever to drain it. What are people doing to drain the tank?
Thanks
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05-14-2020, 06:41 AM
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#2
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Site Team
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,751
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Other than being patient you could turn on the rw pump and run the outside shower and or fill a 5 gal bucket from the inside shower several times. If you don't want to fill your gray tanks. If your going to a dump station then fill the holding tanks via the toilet, sinks, etc.
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Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
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05-14-2020, 07:39 AM
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#3
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Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,692
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Quote:
Originally Posted by jb44588
I have the 2020 Passport 3100QB with a 43 gallon fresh water tank and it takes forever to drain it. What are people doing to drain the tank?
Thanks
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Per the red question......I go do something else for a few hours if I've put water in it, which is very seldom. Not being a smart aleck it's just so dang slow. I've seen some (can't remember) that had a 1 1/2" drain pipe out of them with a valve which would be nice, but those little 1/2"?? drains are a pain.
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Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
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05-14-2020, 08:16 AM
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#4
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Senior Member
Join Date: Nov 2017
Location: Picacho, Az
Posts: 6,809
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How often do you need to drain the full 43 gallons?
Maybe next trip only fill it 1/2 full!
Not trying to be a smart a##, but what's the hurry?
Open it & walk away, you'll never completely empty it unless you tilt the RV towards the drain.
__________________
Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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05-14-2020, 08:16 AM
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#5
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,996
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Fresh water tank drains come in all sizes from 1/2" petcock style to 2" "dump valve" style. The all have plusses and minuses.
If you've ever been on a dirt/gravel campsite/parking site and pulled the handle on a 2" FW drain, you know the "rut/mudhole and erosion" that can occur. In that situation, having a 1/2" drain is a "blessing, not a curse"...
On the other hand, having a 1/2" drain when you're in a hurry can be a curse, not a blessing....
I've learned, many years ago, to compensate for the limitations of my trailer. So, if my "task for now" is to drain the FW tank, I plan my time so after I open the valve, I go do something else rather than "stand there watching a tiny stream of water for an hour"....
To me, it's a "small inconvenience that I've learned to use without difficulty".. Sort of like using the time waiting for my oil to be changed in the truck. I could "pace the waiting room, doing nothing" or "use the time to catch up on something I can do during that 15 minutes that I'm waiting"....
As for "modifying the tank drain, the "tank limitations" are the major factor. If there is a 1/2" threaded drain fitting in the bottom of the tank, you can't add a bigger valve to speed the flow without a major tank modification.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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05-14-2020, 08:29 AM
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#6
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Senior Member
Join Date: Oct 2018
Location: Southern California
Posts: 1,286
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Whenever I have to drain the full tank (and mine is 60 gallons), like when I’m sanitizing the fresh water system, I just plan ahead and find something else to do for a couple of hours. Or I let it drain overnight.
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Mike
2017 F250 6.7 Powerstroke FX4 crew cab
2016 Hideout 24BHSWE (27 foot TT)
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05-14-2020, 08:39 AM
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#7
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Member
Join Date: May 2020
Location: Cincinnati
Posts: 31
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That's what I was thinking if you could put in a bigger drain valve
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05-14-2020, 08:47 AM
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#8
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Senior Member
Join Date: Jan 2019
Location: Twin Cities
Posts: 121
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Mine is the 2" dump valve style so only takes about 5 minutes to fully drain.. I didn't even realize other styles existed!
The only time I've ever dumped freshwater is at home on the driveway. It's concrete and slightly sloped to the street, so it drains right away and doesn't swamp my yard or anything.
The times that I tanker in freshwater to a campsite I use it to fill the black tank before dumping at the end of the stay. I don't usually tanker FW back out unless I need it for some reason (such as if the next site is also without water hookups). I've never drained FW at a campsite or a dump station.
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crk112
“The Truck” 2013 Ford F-150 SuperCrew XLT 5.0L 4WD 157WB
“The Cabin” 2017 Hideout 242LHS - SOLD!
"The Cabin v2" 2016 Jayco Greyhawk 31DS
Fastway e2 round bar WDH
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05-14-2020, 09:32 AM
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#9
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,996
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Quote:
Originally Posted by jb44588
That's what I was thinking if you could put in a bigger drain valve
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Nearly all of the FW tanks that I've seen have a specific size molded in, threaded drain fitting. I don't know of any way to "cut out the old 1/2" fitting and install a 2" fitting without risking destroying the tank. You can't "add larger fittings by using adapters to make the 1/2" hole any larger.
Essentially, what you've got is what you're going to have to use. The alternative could run hundreds of bucks if you change out your tank yourself up to thousands of bucks if you drag it to a dealership and tell them to install a fresh water tank with a bigger drain hole.....
Is it worth it??? Only you can decide that.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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05-15-2020, 04:57 AM
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#10
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Member
Join Date: May 2020
Location: Cincinnati
Posts: 31
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Thanks everyone for the reply's. The good new's is Ohio campgrounds open on 5/22.
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05-15-2020, 05:19 AM
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#11
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Senior Member
Join Date: Apr 2019
Location: Henniker
Posts: 2,165
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Not to split hairs, but it isn’t a 43 gallon tank. The fresh water capacity is 43 gallons which includes the 6 gallon water heater and all the water in the lines, so you are actually about 35 gallons for the tank. As for the tank drain, it is VERY slow. They filled mine for the PDI and when we stopped for gas 250 miles later it was still draining. It isn’t about lack of make-up air, there is a vent. It is just a small pipe that has a 1/4 turn valve that makes it even smaller. As others have said, you can turn on the pump and open all the faucets to speed it up but that’s about it.
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Rob & Amy
2019 Passport 240BH SL (current)
2024 Cougar 29BHL (was on order, Keystone delayed, cancelled order, exploring options)
2022 Ford F250 7.3L Godzilla Crew Cab FX4
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