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Old 08-28-2008, 04:30 PM   #15
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Someone long ago, probably on this forum, told me to NEVER leave the hose connected to the flush system. Good advice!! In this instance some campground employee removed his hose from the faucet to install a tee so a neighbor could connect his hose as well, and turned the faucet back on, thinking it was connected to the water system. Glad I wasn't there to see/smell it, and glad it wasn't my coach!

I also carry a plunger in the basement. I have not had to use mine since the first time, in 4+ years. Probably because I have it now!
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Old 09-01-2008, 09:52 PM   #16
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At the last FMCA in So Cal I talked with the toilet manufacturer and he said not to use a vacuum toilet for three very good reasons, all of which I cannot now remember. However, I was more than convinced he was right. Being a contractor, I'm sure his reasons were legitimate.

My toilet burps, too. Just before the tank is full and never before.

New Wrinkle:
Being that I've put off installing my new See Level II monitor, and my OEM system went to pot (no pun intended), this last weekend, I have a new question. After having over-flowed my gray tank, the results of which was indicated on my feet whilst bathing, I scooped up the excess water and dumped it in the toilet. I then noticed my black tank was full, too. Now...Please tell me why the water being dumped in the toilet pushed more water up into my shower!

I hope this is a vent issue, not a black tank contaminating a gray tank issue. I'm hoping that my gray water, when overflowing first dumps into the black tank, before coming up in the shower. After both are full, they both overflow.
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Old 09-02-2008, 05:50 AM   #17
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Takepride,

I am sure that this is being caused by the fact that the 2 tanks have walls that are right next to each other. When the level of one goes higher than the other, the fuller tank would bulge slightly more, pushing in on the other tank, raising its level.
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Old 09-02-2008, 08:32 PM   #18
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Dale:

Voila! Brilliant! That would have never crossed my mind. Thanks!
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Old 09-03-2008, 06:39 AM   #19
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APEX In the tank bay on top of the black tank on the left side (toward rear) is a dump valve, it is connected to a pipe, which is connected to the black tank. On the other side of this valve is a small flexible black pipe which winds it's way around and attaches to the actual drain pipe out of gray tank. I suspect it's some kind of venting system, but for the life of me cannot figure out what it actually does, and why it's there. Does anybody know what this is-what it does why it's there?
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Old 09-03-2008, 07:47 AM   #20
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Monty,

I haven't paid much attention to the Apex's tanks, but I think that is for the automatic system that extends and retracts your dump hose.
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Old 09-03-2008, 08:05 PM   #21
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Monty, Dale is correct.What you are looking at is the retract/extend system for the sewer hose. Coach air enters a pressure regulator that reduces the pressure to 50-60 PSI. This pressure is connected to an electric solenoid valve in the back of the retract/extend valve you see on top of the black tank. When you command the sewer hose to extend, the solenoid valve opens and pressurizes the sewer hose thru the flexible black pipe you see connected to the gray dump pipe and causes the sewer hose to extend. When you command the sewer hose to retract, the solenoid valve again opens but this time a valve just like the dump valves slides opens and dumps air across a venturi which pulls a vacuum on the sewer hose and causes it to retract. On my coach,this air is dumped out under the coach thru the pipe connected to the front of the valve. I have nothing connected to the black tank. This could be a 2007 upgrade to dump the air into the black tank and out the black tank vent.

A number of Apex coaches have experienced failure of the sewer hose system due to a pop safety valve in back of the extend/retract valve blowing out. The vendor fix is simple by installing a rubber plug in the resulting hole and secure it in place with a electrical tie.I just did my coach.

Two of us have experienced a far more serious problem I do not yet have a handle on. A short or something caused the retract function to activate causing coach air pressure to leak out.
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Old 09-03-2008, 10:40 PM   #22
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Dale & Basil,
It never occurred to me that was what it is, but now I remember the air regulator, and a guage and it's never over about 60 PSI. I'm not sure exactly what you mentioned about a failure. But make sure you don't have a spare remote hanging around, mine has about three, and if one of them has the button pushed, the system wont work. You may not have a remote, but mine was set up that way. I took the batteries out of the spare ones. There is an air dump valve in that compartment as well, you might make sure it's closed, as it will dump coach pressure. I will try to take a picture of the whole system and post them tomorrow or Friday.
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