Gray tank will not drain

[Winger22]

Well, what happened?

[66lima]

Originally Posted by Old-Biscuit

Each tank should have it's own dump valve even if they drain thru common drain line

Otherwsie with only ONE valve both tanks would be tied together without being able to isolate grey from black

Verify Valve is actually being opened when handle is pulled

Sometimes the cut out disc falls down inside tank and floor jockey leaves it. Then it can be pulled to tank outlet and block/restrict the flow when dumping

I added a bunch of water to my black tank when we got our new camper.
When I pulled the black tank drain valve the piece of linoleum that the monkey that works at the factory came out of the drain. (LUCKILY)
I think some of the skilled goons that build these things think it's funny to just drop them into the tank.
One less thing to have to pick up.
I have been in about every camper factory in Northern Indiana and watched them get put together.
I know of what I speak.

[GUS2000]

Originally Posted by 2021SS4051

2021 SuperStar 4051 gray tank will not empty; it only has 1 T-Valve as the black & gray pipes come together just under T-Valve. Was washing dishes this evening & that gray water started filling up the shower floor. Spoke to after hour Newmar person who says there 'should be' another T-Valve BUT there is not another t-valve. First time it's ever happened. Appreciate any & all input, feedback etc. TY

In the wet bay, you will see a small panel above the two switches (black/grey dump valve switches). remove that panel and you should have access to manually pull the grey tank valve.

[scott.bryan]

Originally Posted by GUS2000

In the wet bay, you will see a small panel above the two switches (black/grey dump valve switches). remove that panel and you should have access to manually pull the grey tank valve.

We had the same same problem when we took delivery of our SS4061.
The T valve behind the panel in the wet bay that Gus2000 refers to is for the Black Tank only.
After finding someone at new star familiar with th Super C we located the grey tank T Valve.
First open the passenger side pass through and pull out the drawer to get it out of your way, then Open the opposite side (next to last) cargo door on drivers side (pass through compartment) . You will have to crawl in the bay and look up in between the frame rails and you will see the T Valve and you can operate it manually then.
On ours the clip holding the electric actuator onto the T valve had come loose
After replacing the clip back in place I secured it with a coupl of zip ties and have not had any problems since.

[GUS2000]

Originally Posted by scott.bryan

We had the same same problem when we took delivery of our SS4061.
The T valve behind the panel in the wet bay that Gus2000 refers to is for the Black Tank only.
After finding someone at new star familiar with th Super C we located the grey tank T Valve.
First open the passenger side pass through and pull out the drawer to get it out of your way, then Open the opposite side (next to last) cargo door on drivers side (pass through compartment) . You will have to crawl in the bay and look up in between the frame rails and you will see the T Valve and you can operate it manually then.
On ours the clip holding the electric actuator onto the T valve had come loose
After replacing the clip back in place I secured it with a coupl of zip ties and have not had any problems since.

Makes sense that the 4061 is there but ours is a 4051 and the black tank valve is in the second to last bay on the off door side... grey tank is behind that panel in the wet bay... every floorplan can be different so its important to specify which one you are in when asking a question

[Dutchstar411]

Originally Posted by 2021SS4051

we still cannot locate T valve on gray tank; got a schematic which shows black tank towards rear of coach and gray tank, in front of black tank, towards front of coach. Looks like valve is in front of the gray tank with pipe running under both tanks. If schematic is correct, we have no idea how to access that gray tank valve.

With all the posts here by several folks it would be nice to know your outcome.

I'm sure that all the posters here would appreciate that very much.

[Carl Avila]

There has to be a valve for the gray tank, otherwise the black tank would back up into the gray tank. Are you sure there are not electrically operated valves further upstream?;

[scott.bryan]

Many folks here are speculating on. How the electric switch operate the dump valves. On our 4061 and I “assume” on others with electric switch dump valves. These are not electric valves. They are electric operated actuators mounted next to the manual dump valves. The actuator is attached to the T handle with a clip and when the button is pushed the actuator pushes or pulls the manual T valve in The proper direction.
This allows you to manually operate the dump valves in case of electrical or motor issues.
As we’ve learned from other posted here, the actual location of the T valve and corresponding electric motor/actuator are difficult to locate and vary by floor plan.

[GUS2000]

the suspense is killing me

[Dutchstar411]

Originally Posted by GUS2000

the suspense is killing me

Two posts then done by the OP.


I'm unsubscribing from this thread... can't handle the suspense any more. Maybe his coach filled up with the gray water and he floated away.

[tomato]

Originally Posted by 2021SS4051

2021 SuperStar 4051 gray tank will not empty; it only has 1 T-Valve as the black & gray pipes come together just under T-Valve. Was washing dishes this evening & that gray water started filling up the shower floor. Spoke to after hour Newmar person who says there 'should be' another T-Valve BUT there is not another t-valve. First time it's ever happened. Appreciate any & all input, feedback etc. TY

Quoting OP in hopes he receives a notification...Did you ever get this figured out? What was the solution?