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Old 09-21-2016, 10:25 AM   #1
Join Date: Dec 2015
Location: Illinois
Posts: 36
Black tank odors gone

Wanted to share with everyone the best $20 I've spent on an upgrade yet! After a day or two on the road you start to get "that smell" and for the first six months we just dealt with it. But then I started looking into a modification and found this gem, the Camco Cyclone. Installed it and immediately had a HUGE improvement. For us, the smell is COMPLETELY gone. I can't believe it. Installation was literally 15 minutes (most of which was spent scraping up the dicor sealer around the existing vent. If you go this route make sure you order some dicor sealer to finish the job. No cutting or custom modifying, just screw out the other one and screw the new one in...seal it up and you're done. You really can't go wrong with this one!

**I bought a different brand/model first but it couldn't be installed due to the refrigerator's exhaust housing (I think that's what it is) next to the black tank vent. Returned that and got the Camco Cyclone**

2016 MBS 2401w
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Old 09-21-2016, 10:46 AM   #2
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Good to know... thanks!

2012 Rockwood Ultra-Lite 2701SS with ProPride 3P 1400 hitch
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Old 09-21-2016, 10:49 AM   #3
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Never had this issue, but still a "good to know". Thanks.
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Old 09-21-2016, 11:43 AM   #4
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Location: Georgetown Kentucky
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I can back up this as well, we regularly had the issue for the first 9000 miles. I put it on for our cross country trip and did not happen once in 5700 miles. This should be factory installed!

2016 Sunseeker W MBS

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Old 09-21-2016, 11:58 AM   #5
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Location: Eastern GTA, Ontario, Canada
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I've heard good things about the Cyclone and the 360 Siphon.
2011 Rockwood Signature Ultra Lite 8293SS, 12K Equal-i-zer
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed, 3.73, w/ snow plow & camper pkgs.
2010 Rockwood Roo 23SS (2012 - 2014)
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Old 09-21-2016, 02:13 PM   #6
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Location: Middle GA
Posts: 523
I'm glad that works. Thanks for the information.

We use the 360 Siphon. We got it on a first trailer, when we were having issues. It worked so well, we've installed them on each subsequent home away from home. They work very well!

Anything that helps "pull" the odors out of the tanks are a good upgrade.
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2008 F250 Lariat 4X4 6.4 Diesel
61 nights in 2016
23 nights so far in 2017
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Old 09-21-2016, 02:51 PM   #7
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Posts: 1,598
Also good to know, but with 32 nights in our RV, with stays from 1 to 5 nights before cleanout, we have never had any smell whatsoever. The key is not to run the exhaust fan when flushing, which pulls the odors right out of the tank and into the room. Also running other exhaust fans in the RV could theoretically cause this, but we have not had that happen even though we have two room vent fans often in use. Flushing is just one second open then closed again. We use no chemicals or magic formulas. Just keep the trap door shut and the exhaust fan off when flushing.

The only time we did have any smell in the bathroom was because the toilet bowl itself needed cleaning. It was visually apparent too once it became noticeable. But that is far different from smelling the septic tank itself - a smell which is unforgettable!

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2016 Forester MBS 2401R
Nights camped 2016: 29; RV to date: 32
2016 Forester 2401R
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Old 09-21-2016, 03:28 PM   #8
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We tried the Cyclone and it worked well for awhile but when grit gets into it, you have to clean it or it will not revolve. We are now looking at the 360 Siphon vent but would like to hear from fellow RVers if they are worth it.
Marcel & Jenne
Kemptville, ON
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Old 09-22-2016, 07:25 AM   #9
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Location: In a big child free home - except for me
Posts: 1,239
I've used the Cyclones on our 2012 Salem and on our SOB Heartland Bunkhouse. Just purchased a Greywolf Toy hauler and this will be one of my first mods next spring.

never had theissue of them not spinning.
09 Sundance 31.5 XLT Bunkhouse
17 Greywolf 22rr Toy Hauler
The new toy hauler - 2016 Ford F150 Supercrew XTR ECOBOOST.
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Old 09-22-2016, 07:25 AM   #10
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Location: Middle GA
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The 360 Siphons work very well. On a previous trailer, we had some issues with black tank fumes and this cleared most of it up. The rest, we found out was from a faulty seal in the rear of our toilet (taken care of with the warranty). I immediately added the Siphon to our new Crusader. In our past trailers, we installed them on the Grey and Black Tank vents. The Crusader only has a single vent, so only needed one.

Here is a demo for you, from RV Geeks:

Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2008 F250 Lariat 4X4 6.4 Diesel
61 nights in 2016
23 nights so far in 2017
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black, black tank, tank

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