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Old 01-30-2011, 01:38 AM   #1
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Mexray's Avatar
1978 28' Ambassador
Morada , California
Join Date: Jan 2006
Posts: 1,583
New Slant on Tank Sensor Cleaning...

I found this info buried in an RV'ers blog the other day...Haven't tried it yet, but it sounds plausible...

Try this method of Gray & Black tank sensor cleaning when your rig is going to be at rest or in storage for about a month in ABOVE freezing weather:

1. Empty both holding tanks.
2. Add about 1/2 cup of liquid Septic Tank Enzyme Additive, the type that's safe for plastic tanks - to each holding tank.
3. Fill each tank about 1/2 full with fresh water.
4. Take a drive around the neighborhood to get the 'brew' well mixed.
5. Return to your storage area and add enough water to fill each tank completely.
6. Let it sit for a month to allow the enzymes to work on all the 'crud' inside, before flushing with fresh water.

If anyone's used this method, let us know how you felt it worked out...

Ray & Pat; Morada, CA
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Old 01-30-2011, 07:02 AM   #2
4 Rivet Member
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2007 20' Safari
2016 26' Flying Cloud
Chgo. N.W. Burb's , Illinois
Join Date: Nov 2006
Posts: 492
Clean Tank/Sensors

Thank's for info. Sounds like a good idea.

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Old 01-30-2011, 10:18 AM   #3
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1996 36' Clipper Bus
Tub City , British Columbia
Join Date: May 2009
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Tank Sensors

What would camping be if you knew everything was working perfectly?
You just can't beat the excitment of the moment, when the grey water backs up into the shower, or your loving wife just gets the shampoo on her hair and you run out of fresh water!!!!!!!!!!!!
These are truly the "MOMENTS TO REMEMBER"

Campfire Stories don't come easy when all systems work as planned.

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Old 01-30-2011, 10:28 AM   #4
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2012 25' FB Eddie Bauer
Vintage Kin Owner
Virginia Beach , Virginia
Join Date: Sep 2004
Posts: 5,678
Sounds like a decent idea - most of us worry about the black tank, but the gray tank gets a lotta nasty stuff in it too! Just think about washing dishes and showering.


I'd personally bet that a couple of days would do the trick.

Today is a gift, that's why they call it the present.
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Old 01-30-2011, 11:51 AM   #5
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2005 39' Land Yacht 390 XL 396
Common Sense , Texas
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I think I'll give it a try. We've had several Airstreams (never bought a new one) and never had tank guages that actually worked.

"To compel a man to subsidize with his taxes the propagation of ideas which he disbelieves and abhors is sinful and tyrannical."-- Thomas Jefferson
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Old 01-30-2011, 01:07 PM   #6
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Corpus Christi , Texas
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Any excuse to hitch up is a good one.

1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 10-cpm solo, 18-cpm towing
Sold: Silver Streak Model 3411
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tank cleaning

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