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07-26-2020, 07:29 PM
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#1
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Junior Member
Join Date: Nov 2019
Posts: 16
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Fresh water in toilet/shower cassette starting to smell mildewy
Hi all!
We just got back from another adventure in our 2516G, and while we were out, I noticed that whenever my kids used the cassette toilet the fresh water that was getting pumped out had kind of a mildew smell to it. I fill the tank up before every trip, and most of the water typically gets used between my wife and kids. Lol. I dunno if anyone else has run into the same problem with their setup, but would it be safe for me to run a small quantity of bleach through the system to kill anything sitting in the tank? Is there a better product that I should look at?
Thank you!
Jeff
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07-26-2020, 10:21 PM
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#2
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Member
Join Date: Jun 2020
Posts: 49
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Quote:
Originally Posted by Jharness81
Hi all!
We just got back from another adventure in our 2516G, and while we were out, I noticed that whenever my kids used the cassette toilet the fresh water that was getting pumped out had kind of a mildew smell to it. I fill the tank up before every trip, and most of the water typically gets used between my wife and kids. Lol. I dunno if anyone else has run into the same problem with their setup, but would it be safe for me to run a small quantity of bleach through the system to kill anything sitting in the tank? Is there a better product that I should look at?
Thank you!
Jeff
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I noticed the same thing on our last trip. I put a cap full of fresh water treatment in the tank to hopefully combat it. However, after doing that, I read somewhere that the chlorine in the water treatment neutralizes the treatment chemicals used in the black water tank. Not sure if that’s true but the real tell will be when we take it out again in a week and we see what comes out of the fresh water tank on first use.
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07-26-2020, 10:43 PM
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#3
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Senior Member
Join Date: Aug 2018
Location: Northwest Indiana
Posts: 572
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I've had 2 pop ups with the same thetford toilet. Never have I ever had a smell.
Don't put any chemicals into the fresh water, it can ruin the rubber gasket that seals the toilet, and cause the bowl water to start leaking around the cassette into the enclosure and ultimately come out under the enclosure onto the camper floor.
If it gets bad smelling, just drain it, and refill. In fact, I'd do that a few times just to flush it out as you may have mineral deposits in there causing the smell.
__________________
2019 Ford F150 Race Red XLT Sport, CC, 4WD, 145" WB, 3.5L Ecoboost, 10 speed, 3.55 Locking Axle, 1830# Payload, 12,700# Tow Rating, pulling a 2020 Rockwood Premier 2716G Pop Up, with a 14' box. Go through Indiana Dunes NP 5X/week! Previously had 2012 Jayco Jay Flight 26BH and 2008 Jayco Jay Flight 19BH Travel Trailers. Also previously had 2007 Starcraft 2406 Pop Up with 12' box and bathroom, Previously had 2005 Rockwood 2290 Pop Up with 12' box and porta potty cabinet.
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07-27-2020, 12:45 AM
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#4
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Senior Member
Join Date: Feb 2018
Location: TEXAS
Posts: 9,208
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Quote:
Originally Posted by Jharness81
Hi all!
I noticed that whenever my kids used the cassette toilet the fresh water that was getting pumped out had kind of a mildew smell to it.
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If the fresh water has a smell to it, you need to disinfect the fresh water tank. It should be done at least once a year. Here's a video that explains how.
__________________
2015 Dynamax REV 24TB class C
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07-27-2020, 06:12 AM
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#5
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Senior Member
Join Date: Aug 2018
Location: Northwest Indiana
Posts: 572
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Quote:
Originally Posted by Reverse_snowbird
If the fresh water has a smell to it, you need to disinfect the fresh water tank. It should be done at least once a year. Here's a video that explains how.
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Its not the fresh water tank but the "cassette" toilet flush water tank, totally different.
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07-27-2020, 06:48 AM
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#6
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Canadian Member
Join Date: Feb 2012
Location: Eastern GTA, Ontario, Canada
Posts: 6,235
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Quote:
Originally Posted by Mike91
Its not the fresh water tank but the "cassette" toilet flush water tank, totally different.
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Does the toilet in those popups come out and have a built-in water tank for flushing?
__________________
2023 Rockwood Signature 8262RBS
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed
2019 Rockwood Signature 8290BS (2019 - 2022)
2011 Rockwood Signature 8293SS (2015 - 2018)
2010 Rockwood Roo 23SS (2012 - 2014)
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07-27-2020, 06:51 AM
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#7
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Senior Member
Join Date: Aug 2018
Location: Northwest Indiana
Posts: 572
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The flush water tank is a permanent ~3 gallon tank just for toilet flush water. The 5 gallon black water cassette is removable for dumping. The toilet is permanently installed.
I misspoke in an earlier post and called the flush water, fresh water.
__________________
2019 Ford F150 Race Red XLT Sport, CC, 4WD, 145" WB, 3.5L Ecoboost, 10 speed, 3.55 Locking Axle, 1830# Payload, 12,700# Tow Rating, pulling a 2020 Rockwood Premier 2716G Pop Up, with a 14' box. Go through Indiana Dunes NP 5X/week! Previously had 2012 Jayco Jay Flight 26BH and 2008 Jayco Jay Flight 19BH Travel Trailers. Also previously had 2007 Starcraft 2406 Pop Up with 12' box and bathroom, Previously had 2005 Rockwood 2290 Pop Up with 12' box and porta potty cabinet.
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07-27-2020, 09:18 AM
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#8
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Junior Member
Join Date: Nov 2019
Posts: 16
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Quote:
Originally Posted by Mike91
I've had 2 pop ups with the same thetford toilet. Never have I ever had a smell.
Don't put any chemicals into the fresh water, it can ruin the rubber gasket that seals the toilet, and cause the bowl water to start leaking around the cassette into the enclosure and ultimately come out under the enclosure onto the camper floor.
If it gets bad smelling, just drain it, and refill. In fact, I'd do that a few times just to flush it out as you may have mineral deposits in there causing the smell.
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This is definitely the first time we’ve ever had a smell... and it’s not even the black tank that smells. Lol. Since we put a squirt of treatment solution into the tank before we head out every time, the tank always smells clean. Our camper sat unused for years at someone’s house before we bought it (they had never used it at all), and the flush water tank was full of slimy grossness that had to be flushed out the first time I filled up the system. After that we never noticed any kind of smell, except for on this last trip. The flush water typically always gets used up while we’re out, and I’m always filling the tank back up... so I don’t think old water is the issue. I can definitely try a flush again, but if it’s something growing in the tank I think any improvement that’s noticed will only be short lived until we let the water sit in the tank for a few days... hence the bleach question. I do worry about the chemicals messing something up though...
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07-27-2020, 09:22 AM
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#9
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Junior Member
Join Date: Nov 2019
Posts: 16
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Quote:
Originally Posted by SomeName
I noticed the same thing on our last trip. I put a cap full of fresh water treatment in the tank to hopefully combat it. However, after doing that, I read somewhere that the chlorine in the water treatment neutralizes the treatment chemicals used in the black water tank. Not sure if that’s true but the real tell will be when we take it out again in a week and we see what comes out of the fresh water tank on first use.
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You should just be able to flush out the fresh water tank by opening up the top and draining through the little plastic water level gauge, correct? Should keep the chemicals from effecting the blank tank chems I would think. Let me know if the treatment works!
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07-27-2020, 09:40 AM
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#10
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Senior Member
Join Date: Aug 2019
Posts: 1,052
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A little bleach 2 tbsp. wont hurt anything. Rubber seals arent made of the old types of rubber. Never had a bad seal ,gasket in 20 years of r-ving.
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07-27-2020, 10:06 AM
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#11
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Canadian Member
Join Date: Feb 2012
Location: Eastern GTA, Ontario, Canada
Posts: 6,235
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If it smells moldy, I'd be inclined to put a bleach solution in that small tank and leave it overnight, like sanitizing the fresh water tank. You can always call Rockwood and ask them if they think it would do any harm.
__________________
2023 Rockwood Signature 8262RBS
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed
2019 Rockwood Signature 8290BS (2019 - 2022)
2011 Rockwood Signature 8293SS (2015 - 2018)
2010 Rockwood Roo 23SS (2012 - 2014)
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07-29-2020, 04:10 AM
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#12
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by Mike91
Its not the fresh water tank but the "cassette" toilet flush water tank, totally different.
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Different tank, SAME Solution if they want to solve the same problem!!
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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07-29-2020, 06:03 PM
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#13
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Senior Member
Join Date: Jun 2016
Location: Treasure Coast
Posts: 410
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Quote:
Originally Posted by Jharness81
Hi all!
We just got back from another adventure in our 2516G, and while we were out, I noticed that whenever my kids used the cassette toilet the fresh water that was getting pumped out had kind of a mildew smell to it. I fill the tank up before every trip, and most of the water typically gets used between my wife and kids. Lol. I dunno if anyone else has run into the same problem with their setup, but would it be safe for me to run a small quantity of bleach through the system to kill anything sitting in the tank? Is there a better product that I should look at?
Thank you!
Jeff
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We have the same unit and never had the mildew smell issue. We use Porta pods and they work great and help sanitize. However, when I get home, I pull the cassette out fill it up have way with water and 1/4 cup of bleach and rinse. Never had an issue with the rubber gasket and the cassette is sanitized!
https://www.walmart.com/ip/Porta-Pak...ckets/37020518
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