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Old 06-16-2013, 04:49 PM   #1
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My solution to toilet flush odor

Problem: When the toilet is flushed, lower air pressure inside the bathroom or high gas pressure from inside the holding tank sucks/pushes the gas inside the holding tank into the bathroom and throughout the RV. I use lots of water when I flush and I don't use chemical. I tried to blame the cat, but he didn't care. I tried to blame the DW but she called me a pig and told me to fix it.

Solution: Put a air tight lid on the toilet. I used a clear plexiglass that used to be a counter cutting board with a rubber seal that fits around the top of the toilet. It works something like this. After using the toilet, I lift the seat and set the cutting board in place and then flush the toilet, the cutting board keep the gas in the tank and the DW is happy. and the cat still does not care.
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Old 06-16-2013, 04:58 PM   #2
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Good idea until someone forgets to remove the cutting board in the middle of the night? Oops!

I just use a bottle of the blue stuff and what odor is present is not offensive.
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Old 06-16-2013, 05:13 PM   #3
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Forgot the last step, My mother taught me close the lid when finished, I must remove the cutting board to do so. My DW does the same (no kids). A rose is still a rose by any other name. I don't want to breathe the blue stuff either.
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Old 06-16-2013, 06:16 PM   #4
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Have you check the vent pipe that goes through the roof too the tank for a blockage?
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Old 06-16-2013, 06:43 PM   #5
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Quote:
Originally Posted by ccrider, View Post
Have you check the vent pipe that goes through the roof too the tank for a blockage?
yep and while I was up there I inspected the roof, all the vents and install a cyclone cap on the black tank. It just been hot in Colorado.
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Old 06-16-2013, 07:13 PM   #6
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Interesting! I have not had that issue in any of the rigs I have had.
Dont see how there can be pressure in the tank if the vents are clear.
If the bath vent fan is on it may create a negative pressure and suck fumes from the toidy, me thinks. Maybe even from a vent fan in another room.
At any rate, something is amiss.
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Old 06-16-2013, 08:02 PM   #7
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Old 06-16-2013, 08:18 PM   #8
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CampDaven,

I agree, seems like something isn't right. We have never had any black tank fumes in the coach. By design the vent pipe should eliminate any pressure differences. I guess it's possible if you had a very tightly sealed coach and had an exhaust fan on, maybe you could pull air down through the vent. That's purely a guess.
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Old 06-16-2013, 08:23 PM   #9
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If the bathroom fan is running there WILL be a lower air pressure in the bathroom than in the black tank.Therefore the air in the tank will flow into the bathroom. Solution is to turn the fan OFF while flushing.When that big hole in the black water tank is closed ,just turn the fan back on.
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Old 06-16-2013, 09:19 PM   #10
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I have had that problem one time with mine, found out that there was a build up just as the pipe from the toilet makes the turn to the tank. Noticed that when I flushed the toilet it would have a small burp and that is when you could smell sewage. To solve the problem cleaned out the pipe and made sure that there was a little more water in bowel so it would wash the paper down when it was flushed.. So you might check and make sure that the drain is running free.
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Old 06-16-2013, 11:32 PM   #11
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I learn about the no running the fan along time ago. At one time I thought it would be a good joke to play on mother in-law ( I decided against it ), But even though it flushes fine, I will try running a snake through the toilet.
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Old 06-16-2013, 11:55 PM   #12
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Yikes. Toilet snakes!

http://www.silive.com/news/index.ssf...sland_sur.html
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Old 06-17-2013, 01:34 AM   #13
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Quote:
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Yikes. Toilet snakes!
I will never trust my toilet again.
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Old 06-17-2013, 09:25 AM   #14
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I had the same problem and fixed it with this.

Lil' Stankerô In-Line Deodorizer Fans

It keeps a positive pressure on my vent 24/7
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