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08-14-2018, 03:00 PM
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#21
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Senior Member
Brand: Thor Motor Coach
State: Oklahoma
Posts: 114
THOR #8223
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Quote:
Originally Posted by The Gritz Carlton
Gray water still smells and has food particles in it that will cause ants, etc. Any RVer should respect the environment and dump only in designated, approved dump stations. There are those emergency situations whereby bleeding a little gray water off becomes necessary....but not in a park or campground!! He wants to dump his gray tank right next to you?? Pretty disgusting and that also says he will dump his black tank on open land when no one is looking.
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Yeah, it just didn't feel right to me.
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08-14-2018, 04:02 PM
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#22
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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Quote:
Originally Posted by phoeg
Same here! I'm a bipartisan crank! LOL
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..."Birds of a feather"...
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"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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08-14-2018, 04:58 PM
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#23
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Senior Member
Brand: Thor Motor Coach
Model: Miramar 34.4
State: Iowa
Posts: 796
THOR #4488
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Like others have said, the gauges are not really accurate. The more you camp the better you'll get at knowing how long you can go. I have 100 gallons of fresh water and 41 each of gray and black holding. I can visually check the fresh water level, although the gauge for it is relatively accurate. When I get to 1/3 remaining of fresh water I know my tanks are getting full. I use a portable tank to dump some of the gray/black water into and transport to the dump station behind my Jeep.
I never fully empty at the campground. I am fortunate we have a rest area on the Interstate close to home, with a dump station. I empty my ice cube bin into the toilet a couple hours from home and when I dump at the rest area the gauges read empty.
After dumping I always add a few gallons of water to both holding tanks along with the additive for the black water tank. I have done it this way for years and feel my gauges work as designed...not extremely accurate but close enough.
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08-14-2018, 05:42 PM
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#24
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Senior Member
Brand: Thor Motor Coach
State: Oklahoma
Posts: 114
THOR #8223
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Gray Water "meter" incorrect reading?
Quote:
Originally Posted by Miramar Owner
I empty my ice cube bin into the toilet a couple hours from home and when I dump at the rest area the gauges read empty.
After dumping I always add a few gallons of water to both holding tanks along with the additive for the black water tank.
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Miaramar Owner (or anyone else) Thanks for the tip. Regarding above: If I read that correctly you dump the cubes prior to the "gunk dump", correct? I will have about a twenty minute drive to the dump station.
As for the post-dump additions, yep, I have that habit now. ;-)
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08-14-2018, 06:57 PM
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#25
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Senior Member
Brand: Thor Motor Coach
Model: Miramar 34.4
State: Iowa
Posts: 796
THOR #4488
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Yes...I dump the ice cubes through the toilet into the black water before I make my final dump. If your tank is full, this may not have much impact. But as I mentioned in my previous post, (if my tank is full) I dump a portion of my holding tank into my portable unit throughout my stay.
The many thing is I want the tank to register empty when I am done. If you leave "stuff" stuck to the walls inside your tank, it will be very difficult to get it off. You can also use the back flush feature, if your RV has one. That does a good job as well. The ice cubes is just easy to do and generally works.
By the way, I love Oklahoma. What a fun, friendly state to visit.
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08-14-2018, 07:40 PM
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#26
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Senior Member
Brand: Thor Motor Coach
Model: THOR Chateua 35SF
State: Florida
Posts: 5,850
THOR #11130
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Ice cubes work...I've done that for a couple years now. Drain tank leaving 1/4 or so full then add ice. Drive to next location dump site. the partially full tank floats the ice around and knocks off the "chunks".
__________________
Now an SOB
Traded Thor for Melbourne Prestige 24NP
2018 THOR Chateau 35SF
Two Labs, Bugsie & Blondie
Blondie passed in 2020 at 5 to Leukemia
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08-15-2018, 05:06 AM
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#27
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Senior Member
Brand: Thor Motor Coach
State: Oklahoma
Posts: 114
THOR #8223
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Thanks, everyone for the helpful feedback. We dumped the tanks today and it was probably good we did. I paid the sanitation district $5 for piece of mind! [emoji18]
The gray tank indicator shows empty, but the black tank showed ⅓ full while still at the dump station. I'll do the ice cube dealie next time. [emoji1303]
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08-15-2018, 11:07 PM
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#28
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Senior Member
Brand: Thor Motor Coach
Model: ACE
State: Georgia
Posts: 214
THOR #9143
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Quote:
Originally Posted by Laco
Those indicators are notoriously inaccurate. As they age, the sensors collect debris on them and will often light despite there being a low liquid level in the tank. I just kind of know how long we can go before having to dump tanks, and only use the indicators as a rough guide. You can try filling your tank with water, or almost full add some cleaner, then drive on a rough road with lots of curves. That may help, at least temporarily. With the black tank, the drill is to fill it half or so, add lots of ice cubes, and drive for awhile. Again maybe a temporary fix.
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On this note, mine started reading incorrect as well.
I have a friend that works for a local pull behind camper sales / service business
and he tells me the same thing about paper clogging the sensor.
His action of correction is to place water in the tank,
then add 10 to 20 pounds of cube style ICE direct into the toilet.
Then drive the MH around for a little bit.
He said the ice sloshing around will bump things on the sides
of the tank and usually solve the problem.
Guess I'll try this soon.
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Ours is a 2018 THOR ACE 29.3
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08-15-2018, 11:21 PM
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#29
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Member
Brand: Thor Motor Coach
State: Colorado
Posts: 60
THOR #5477
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For gray tank, use dishwasher detergent. Fill tank half full with clean water, dump in 3 or 4 hand fulls of the detergent. It will scrub the tank as you drive and there are no suds.
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08-15-2018, 11:28 PM
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#30
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Senior Member
Brand: Thor Motor Coach
Model: Miramar 34.4
State: Iowa
Posts: 796
THOR #4488
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Dish washing detergent is a good idea because of no suds, but I have to say I've never treated, cleaned or had any issues with my gray water tank.
Just a funny side note...my daughter ran out of dishwashing detergent one time and squirted a little Dawn into the dish washer. It didn't take long before her kitchen floor was covered with soap suds. What a mess.
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08-15-2018, 11:52 PM
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#31
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Senior Member
Brand: Thor Motor Coach
Model: Gemini 24TX (Formerly)
State: California
Posts: 1,459
THOR #5821
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Those gauges are notoriously inaccurate. I really never depend on them, just know that we can go five days or so on the black tank, and usually leave the gray valve open as long as we are connected in an RV park.
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08-16-2018, 12:31 AM
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#32
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Senior Member
Brand: Thor Motor Coach
State: Oregon
Posts: 911
THOR #2271
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Quote:
Originally Posted by philvickie
For gray tank, use dishwasher detergent. Fill tank half full with clean water, dump in 3 or 4 hand fulls of the detergent. It will scrub the tank as you drive and there are no suds.
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Here is my question: If the sensors are not working, how do you know when the grey tank is "half full"?
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08-16-2018, 01:56 AM
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#33
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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Quote:
Originally Posted by gbrown
Here is my question: If the sensors are not working, how do you know when the grey tank is "half full"?
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...Start with a one-cup measuring cup...
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08-16-2018, 02:40 AM
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#34
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Senior Member
Brand: Thor Motor Coach
State: Oklahoma
Posts: 114
THOR #8223
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Gray Water "meter" incorrect reading?
Quote:
Originally Posted by gbrown
Here is my question: If the sensors are not working, how do you know when the grey tank is "half full"?
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Some mathematical perspective…
Some people see the gray tanks as half full, some see the gray tank as half empty. Either way that's twice as good as an overflowing black water tank!
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