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05-30-2022, 06:11 PM
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#1
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Junior Member
Brand: Thor Motor Coach
State: Tennessee
Posts: 5
THOR #25808
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Gray water drain issue
Hi there!
I've got a 2017 Gemini 23tr. My gray water won't drain! It's full- I can even see the water standing when I pull the valve.. Black water drains fine.
Is this a gravity issue, or something else?
Secondly, do you run the drain hose thru the bottom of the rv? Does the connection elbow pivot in any way?
Thanks in advance!
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05-30-2022, 06:55 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: Quantum RQ29
State: Ohio
Posts: 1,296
THOR #13648
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It sounds like your valve just simply isn't opening when you pull the lever.
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05-30-2022, 07:26 PM
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#3
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Junior Member
Brand: Thor Motor Coach
State: Tennessee
Posts: 5
THOR #25808
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Quote:
Originally Posted by coachray
It sounds like your valve just simply isn't opening when you pull the lever.
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It's open, and no issue with in or out.
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05-30-2022, 07:43 PM
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#4
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Senior Member
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 6,899
THOR #13932
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How do you know it's open?
If you consider that maybe it's a gravity problem, have you raised one end of the vehicle?
If new to you can you call the previous owner for exact information?
If you can see water when you look into the open valve your tank has dislodged and is falling out and leaning precariously to its rear or you're at a horrible angle.
The tank actually/usually has a valve set just slightly lower by means of a slant or channel, than the tank bottom.
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05-30-2022, 08:30 PM
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#5
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Senior Member
Brand: Still Looking
Model: Sunstar 29VE Winnebago
State: Texas
Posts: 5,633
THOR #13058
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Quote:
Originally Posted by Sturmfrei- Da
Hi there!
I've got a 2017 Gemini 23tr. My gray water won't drain! It's full- I can even see the water standing when I pull the valve.. Black water drains fine.
Is this a gravity issue, or something else?
Secondly, do you run the drain hose thru the bottom of the rv? Does the connection elbow pivot in any way?
Thanks in advance!
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Pictures would help a lot, elsewise you need more details.
But from what you state it has to be something else if you can see standing water, and you say the valve is open when you pull it?
I would love to see what you see as water standing with valve opened?
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2019 Sunstar 29ve; Toad Lincoln Navigator; RVi Brake 3 & Command Center; Roadmaster Nighthawk Tow bar & Baseplate; Sumo Springs; Safe T Plus; Onan EC-30 AGS; Vmax 250ah AGM; T-Mobile Internet; H/W Heater / Chassis Disconnect Switches; Southwire Surge Guard 44270 & 34951 w/Monitor 40301; Jet Flo Macerator; Alpine SPE500 Speakers; Visio M21D-H8R
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05-31-2022, 12:27 AM
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#6
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,326
THOR #7035
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Quote:
Originally Posted by dkoldman
Pictures would help a lot, elsewise you need more details.
But from what you state it has to be something else if you can see standing water, and you say the valve is open when you pull it?
I would love to see what you see as water standing with valve opened?
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My question as well.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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05-31-2022, 12:57 AM
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#7
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Junior Member
Brand: Thor Motor Coach
Model: Gemini 23TR
State: Nebraska
Posts: 18
THOR #5967
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Sturm, i have a 16 TR so should be the same. You have 2 grey tanks and no way to “see” into them. You also have 2 small and 1 large grey drain handles. Pulling open the large grey handle drain without opening the smaller ones will not allow greys to drain. All 3 greys and black are in that compartment. The outlet connection does pivot down so you can connect drain hose thru the large bottom compartment hole.
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05-31-2022, 11:48 AM
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#8
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Junior Member
Brand: Thor Motor Coach
State: Tennessee
Posts: 5
THOR #25808
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Quote:
Originally Posted by grizzlyclaus
Sturm, i have a 16 TR so should be the same. You have 2 grey tanks and no way to “see” into them. You also have 2 small and 1 large grey drain handles. Pulling open the large grey handle drain without opening the smaller ones will not allow greys to drain. All 3 greys and black are in that compartment. The outlet connection does pivot down so you can connect drain hose thru the large bottom compartment hole.
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Thank you! The outlet connection does not budge. Glad to know it should be moving.
I can see water in the pipe, not the actual tank.
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05-31-2022, 09:54 PM
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#9
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Junior Member
Brand: Thor Motor Coach
Model: Gemini 23TR
State: Nebraska
Posts: 18
THOR #5967
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Also just an FYI, on mine i removed that compartment door and frame and turned it so the door opens up and bought a door retainer to hold it up. That way it is not in the way when trying to connect sewer hose. Also i peeled the decal off the outside of the door as it no longer lines up. Looks fine and never even notice it.
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06-02-2022, 01:21 PM
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#10
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Junior Member
Brand: Thor Motor Coach
State: Tennessee
Posts: 5
THOR #25808
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Quote:
Originally Posted by grizzlyclaus
Sturm, i have a 16 TR so should be the same. You have 2 grey tanks and no way to “see” into them. You also have 2 small and 1 large grey drain handles. Pulling open the large grey handle drain without opening the smaller ones will not allow greys to drain. All 3 greys and black are in that compartment. The outlet connection does pivot down so you can connect drain hose thru the large bottom compartment hole.
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This was helpful! Thank you!
Apparently, I wasn't puling hard enough on the two smaller valves. I'll know better next time!
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06-03-2022, 12:56 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: Chateau 24F
State: Ohio
Posts: 4,161
THOR #16721
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We had a Grand Design trailer which had two gray tanks. NO MENTION on PDI, and me , as a green horn rookie, didn't find the second handle until our third trip!
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06-04-2022, 06:33 PM
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#12
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Junior Member
Brand: Thor Motor Coach
Model: Four Winds Sprinter
State: Utah
Posts: 23
THOR #10500
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Same on my 2022 Delano TT, only one black tank but 2 valves to pull to get black water out. Nothing in the manual or the PDI.
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