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Thread: Black holding tank chemicals

  1. #1
    David and Kelly

    Black holding tank chemicals

    We had a Heartland Travel Trailer before we bought our Reflection. We had always used Camco drop in's that were blue in color. They always seemed to be effective and we never had an odor. We switched to Camco Orange Power liquid treatment two trips ago. We didn't have any odor while on our short trip but boy, when we set up this past weekend, different story. We got set up and I went to put another bottle down the toilet and the smell waiting for us was nasty. And I know I drained the black tank properly the trip before. We could smell it throughout our four day trip every time we flushed even with the new bottle of treatment in the tank.

    So, I guess my question is twofold....

    What is your preferred toilet chemical while 5th Wheel is in use? Should we store the rig with water and chemical in the black tank to avoid this in the future?

    We are still newbs at this. Thanks!!

  2. #2
    Rolling Along
    Join Date
    Mar 2014
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    We just use an enzyme in ours.

    Also, the odor might not be coming from the toilet. For some unknown reason, GD decided to locate the sewer vent pipe right behind the bathroom vent. If your vent was open and there was a breeze coming from behind the unit, the smell could be coming from the outside. We found this out after I installed a vortex fan in the bathroom vent and ran it backward to draw some air into the trailer. It sucked fumes in from the vent pipe and stunk the place out.
    Last edited by notsosan; 02-20-2015 at 11:29 AM. Reason: Additional Comment
    Nick and Nancy
    Abbotsford BC
    2011 Ram 3500
    2015 Reflection 303RLs

  3. #3
    Long Hauler Poppy's 5th Wheel's Avatar
    Join Date
    Dec 2014
    Carlsbad, CA
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    3 Thread(s)
    Quote Originally Posted by David and Kelly View Post
    Should we store the rig with water and chemical in the black tank to avoid this in the future?

    We are still newbs at this. Thanks!!
    I NEVER store my trailer with empty tank(s). I actually leave a good 1/2 to 2/3 tank of fresh water plus a dose of chemical. I even leave a little water in my gray tanks just to keep the bottom of the tank from drying out. The drying is really where the smell comes from.
    Paul "Poppy" and Deb Cervone
    2015 Grand Design Reflection 337RLS
    SteadyFast Stabilizers; MORryde PIN box; Onan LP Generator with 50amp Automatic Transfer; Dual 6v Trojan T-105 Batteries; Victron BMV700 Battery Monitor System; Renogy Solar 400 watts (tilting roof mounts); Renogy 40 amp Rover MPPT controller; Remote Controlled 1000w Pure Sine Wave Inverter; Sailun S637 ST235/85/R16 tires; Sony, Samsung Entertainment System; Residential Kitchen Faucet and Soap Dispenser; Smart Tile; Lifted and balanced with Trailer Axle Blocks; upgraded to 3500# spring packs; Titan electric / hydraulic Disc Brakes; LED rear tail/stop/turn lights; Exterior Beer Bottle Opener; Lots More .....
    2016 GMC Denali 3500HD SRW Duramax/Allison CC 4x4; Andersen Ultimate 5th Wheel Hitch; Tire Minder TPMS; Husky in bed Low Profile Tool Box; Timbren SES
    2007 Corvette Atomic Orange Z51; with Too Much to List SOLD
    2009 Cadillac CTS; Bone Stock
    1955 Buick Century; 64 Buick Wildcat Nailhead 401 cu in / 325 hp; ST400

  4. #4
    Big Traveler
    Join Date
    Apr 2014
    Ocala, FL
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    After dumping black tank, and flushing until water runs clear through sewer hose, I always put about 2 gallons of water back in with Kronen chemical. Have never had an odor problem with it. Other products we used in the past did decent until the middle of summer, 95 degrees outside, whoa! The smell!!
    Have never had an issue with grey tanks, so have never added any chemicals to them.
    Scott and Jan Platt Ocala, FL
    Cameron(Son) & Chica(chihuahua)
    2014 Reflection 337RLS
    2015 Chevrolet Silverado 3500HD 4X4, Crew Cab, Dually, Diesel

  5. #5
    Seasoned Camper redram's Avatar
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    Apr 2014
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    Do a search for "stink when flushing"
    2014 Reflection 303//2013 Ram 2500 turbo diesel Spring, TEXAS

  6. #6
    Long Hauler LCBoyer's Avatar
    Join Date
    Oct 2014
    Los Fresnos, Texas
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    I really like Happy Camper. I buy it on, less expensive
    2018 Freedom Elite 24FE, 2 Yorkies, and my wife MARILYN, HAM call K0LCB. Traveling around this great country, making friends and seeing lot of beautiful and interesting places

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