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Old 08-10-2016, 05:56 AM   #11
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Forgot to mention about the gray tanks...

On mine the indicators (which are suspect) for the Aux tank is the shower and kitchen sink, the one marked Gray is for the bathroom sink. Still trying to figure that one out. On my mod/do list is to upgrade the sensors/indicator system to something more accurate. Either SeeLevel or iSeries. Both seem to be decent systems. One thing I like about the iSeries is that you can set warnings for low tank or high tank conditions.

Aaron
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Old 08-10-2016, 10:13 AM   #12
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Thanks Aaron. I was pushing on those indicator lights yesterday and found that my fresh water tank is 3/4 full. I have no idea when that was filled, so need to look around and see how to drain it. I suspect that my 300DS made it to several RV shows. I emailed my dealership again yesterday to see about the status of my missing manuals. Is it pretty straight forward to drain the fresh water?
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Old 08-10-2016, 12:47 PM   #13
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Sewer tank/hose flushing gizmo

Any of you veterans have any comments on this unit:

Camco Dual Flush Adapter for Rinsing RV Holding Tanks and Sewer Hoses Camco Plumbing CAM39072
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Old 08-10-2016, 05:15 PM   #14
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The Flush King from Valtera is better.

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Old 08-10-2016, 05:32 PM   #15
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Thanks Aaron. I was pushing on those indicator lights yesterday and found that my fresh water tank is 3/4 full. I have no idea when that was filled, so need to look around and see how to drain it. I suspect that my 300DS made it to several RV shows. I emailed my dealership again yesterday to see about the status of my missing manuals. Is it pretty straight forward to drain the fresh water?
Two ways to drain water: turn the pump on and let it run into the gray tank via the kitchen or bathroom sink, then dump the gray tank.

The other method is to pull the access under the fridge and pull the drain valve up. Neither one is particularly quick. I plan to put an electric actuated valve on my drain down points...eventually.

First picture is the piece you have to remove, second one is the valves. I am pretty sure on mine it is the valve on the left (closest to the front of the unit), won't hurt to pull all three, just drains down the whole system. They don't move very far when you pull them, 1/2" or so.

Currently the grate is held in with 4 screws, eventually I am going to use magnets, velcro or a ball catch... again on my list.

Aaron



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Old 08-10-2016, 05:55 PM   #16
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Thanks Aaron. In any case... It all drains into the gray tanks, then through the black tank and stinky slinky?
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Old 08-10-2016, 06:15 PM   #17
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Thanks Aaron. In any case... It all drains into the gray tanks, then through the black tank and stinky slinky?
The drain down valves go straight out on the ground. My drain down outlet points are just above the frame behind the axle on the right hand side.

If you put water in the gray tank you can drain it via the main drain which also is the one the black tank uses. You don't have to pull the black tank valve to drain the gray tanks, they can be done independently. I live in the country so I can drain gray tanks on the ground, typically I water the garden with them.

There are 3 gray tank valves and two gray tanks on our Concords. One tank is on the right hand side (curb side), it has a valve right in front of the tank on the curb side, lines up with the rear awning arm. That one needs to be closed in the winter if you are camping in below freezing weather, otherwise I just leave it open. The other gray tank is on the left side in front of the black tank somewhere. There are two cable operated gray valves in the dump door area. One is for the left side gray tank the other for the pipe that leads to the right side gray tank. And like everything else I plan to upgrade the right side valve at the tank and the left side tank valve to electric and eliminate that extra valve.... eventually.

Hope that makes it as clear as mud, I can get pictures later if you need them.

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Old 08-10-2016, 07:55 PM   #18
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The drain down valves go straight out on the ground. My drain down outlet points are just above the frame behind the axle on the right hand side.

If you put water in the gray tank you can drain it via the main drain which also is the one the black tank uses. You don't have to pull the black tank valve to drain the gray tanks, they can be done independently. I live in the country so I can drain gray tanks on the ground, typically I water the garden with them.

There are 3 gray tank valves and two gray tanks on our Concords. One tank is on the right hand side (curb side), it has a valve right in front of the tank on the curb side, lines up with the rear awning arm. That one needs to be closed in the winter if you are camping in below freezing weather, otherwise I just leave it open. The other gray tank is on the left side in front of the black tank somewhere. There are two cable operated gray valves in the dump door area. One is for the left side gray tank the other for the pipe that leads to the right side gray tank. And like everything else I plan to upgrade the right side valve at the tank and the left side tank valve to electric and eliminate that extra valve.... eventually.

Hope that makes it as clear as mud, I can get pictures later if you need them.

Aaron
I was aware that we had 2 gray tanks and 2 gray tank valves on the driver's side, in the dump door area, but was not aware of the third valve on the passenger's side. I also was not aware that 3 3 values under the fridge dumped straight down on the ground. I've got mine parked (on the side) in my driveway on NEW white concrete. I'll probably just let it run through the sinks and into the gray tanks. You say I don't need to pull the black tank valve to dump the gray tanks? How are the gray tanks dumped? I thought they just automatically emptied into the black tank?
Thanks for all your help. I'm sure once I actually do it, it will make more sense. Just sort of running blind here without the manuals and this being our first ever RV. 👍🍻
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Old 08-10-2016, 08:24 PM   #19
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The drain lines from the gray tanks and black tank come down to the same outlet, where the big cap screws on. As you pull each valve handle it allows the tank to empty into the larger pipe. On a typical dump you do the black tank first, then the gray tanks to rinse the pipe and the stinky slinky. You can dump one tank at a time without having to dump any of the other tanks. We camp in remote campgrounds without sewer hookups, we can dump gray water on the ground as long as we don't put it on the roadways or walk ways. I use a cap with the small garden hose outlet on it and a 12' hose to lead the gray water off into the brush away from walking areas. I do the same thing at home, but drain it off into my gardens.

None of this stuff is in the manuals, the dealer SHOULD have explained all of this during the walk through, but not all of them are created equal. I learned a lot of what I know from an older gentleman that I used to work for and introduced me to RV's. The rest has been by trial and error.

The water out of the fresh water tank is just water, shouldn't stain your concrete or anything.

Aaron
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Old 08-10-2016, 10:44 PM   #20
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Quote:
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The drain lines from the gray tanks and black tank come down to the same outlet, where the big cap screws on. As you pull each valve handle it allows the tank to empty into the larger pipe. On a typical dump you do the black tank first, then the gray tanks to rinse the pipe and the stinky slinky. You can dump one tank at a time without having to dump any of the other tanks. We camp in remote campgrounds without sewer hookups, we can dump gray water on the ground as long as we don't put it on the roadways or walk ways. I use a cap with the small garden hose outlet on it and a 12' hose to lead the gray water off into the brush away from walking areas. I do the same thing at home, but drain it off into my gardens.

None of this stuff is in the manuals, the dealer SHOULD have explained all of this during the walk through, but not all of them are created equal. I learned a lot of what I know from an older gentleman that I used to work for and introduced me to RV's. The rest has been by trial and error.

The water out of the fresh water tank is just water, shouldn't stain your concrete or anything.

Aaron
Muchas Gracias Aaron. There's a COLD beer in it for you if we ever pull off the 300DS get together next year. 👍🍻
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