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Old 03-13-2020, 08:34 AM   #29
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Originally Posted by EdInArk View Post
And that says all any of us need to know, doesn't it?

Isnít that the truth!
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Old 03-13-2020, 09:05 AM   #30
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Originally Posted by AKIQPilot View Post
Isnít that the truth!

People use this sort of logic on everything. Argue about anything and someone will show up and say they've done it their way since the beginning of time, it's worked, so everyone everywhere should expect the exact same results.

I'm happy for grindstone, but his 7 years of good luck doesn't extrapolate to every RVer everywhere.

By the same token, one person's problem with the dreaded pyramid doesn't mean someone else will have the problem.

There is, however, enough anecdotal evidence, including from people I know and trust, that it's a bad idea that I won't do it.

You can't convince me otherwise!
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Old 03-13-2020, 09:46 AM   #31
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Me either especially after camping next to an open black tank for days and the owner said to me "I don't smell nutin".
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Old 03-13-2020, 07:35 PM   #32
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Originally Posted by -Gramps- View Post
Me either especially after camping next to an open black tank for days and the owner said to me "I don't smell nutin".

I'm not sure of the connection between a open waste valve and sewer smell. Is it the sewer hose that smells or the tank vent pipe? Either way the open valves vs closed valve should not smell if the system is tight and the vent pipe is always open regardless of the valve position anyway. For that matter most sewer caps are just sitting loose on the sewer pipe in most unused camp sites and they don't smell.
Usually when we smell sewer odors, it's because the neighbor is dumping his tank next door and the smell is coming from his leaky hose.
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Old 03-13-2020, 08:10 PM   #33
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I too leave my valves open. Don't smell anything.

There are more RVs with lose fitting sewer hoses the tight fitting, take a look around. Why would all of the sites sewer gas come up my vent stack ?

If I'm not hooked up with the 3" hose, while traveling, I dump with a 3/4" masserator hose. That restricts the flow to, but I haven't had any pyramid issues.
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Old 03-13-2020, 11:58 PM   #34
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I leave my gray tank open and black tank closed. Makes sense to me that you don't want the water to drain off and the solids left behind. You may never have a problem, but why take a chance? If there are only two of you the black tank shouldn't have to be dumped that often anyhow.
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black tank, tank

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