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Old 01-27-2023, 04:29 PM   #15
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Quote:
Originally Posted by Mr. T View Post
Thanks!
I wish Newmar would have added a rinse option like the one for the black tank.
I'm not familiar with the wet bay layout on Newmars, but adding a gray tank sprayer on my Tiffin was not a difficult project at all.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Old 01-28-2023, 04:55 AM   #16
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There are a number of ways to keep your tanks clean, but you are requesting ideas on how to first clean your tanks. It is simple, just use a product that cleans and cleans well. For me, I like granular TSP. I fill my tanks about 35% full with water, then drive a few hours. Upon arrival to a campground, I then dump them, and rinse also. If you do not have a rinse installed in your tank, just add water until nearly full and then dump. After a couple of times doing this procedure, you can move to whichever method you want to help keep your tanks clean. Works for me.
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Old 02-01-2023, 07:29 AM   #17
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I use Green Gobbler, dump a bottle in the grey tank and fill with water. Works great breaking up grease and hair. I am full time so I just close my valve and when tank is full dump.
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Old 02-01-2023, 07:46 AM   #18
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Somebody posted using your home pressure washer to thoroughly and positively clean/flush the tanks. Amazon has the kit which costs about $60. I bought it and will pressure wash my tanks once a year at the end of the camping season. Simple and it works great.

During the season we use happy camper. When we break camp to head home we keep the black tank at least 1/2 full. The sloshing around it gets on the trip home keeps the tank clean enough we seldom have issues with reading the levels. We could do the same with the gray tank since it does get enough waste materials to cause some odors.
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Old 02-01-2023, 05:23 PM   #19
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Cleaning grey tank

Quote:
Originally Posted by TeJay View Post
Somebody posted using your home pressure washer to thoroughly and positively clean/flush the tanks. Amazon has the kit which costs about $60. I bought it and will pressure wash my tanks once a year at the end of the camping season. Simple and it works great.

During the season we use happy camper. When we break camp to head home we keep the black tank at least 1/2 full. The sloshing around it gets on the trip home keeps the tank clean enough we seldom have issues with reading the levels. We could do the same with the gray tank since it does get enough waste materials to cause some odors.
Please post the link to the amazon product you purchased to pressure wash your tanks.
Thanks!
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Old 02-01-2023, 06:13 PM   #20
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Mr. T,

Sorry, sometimes I have a devil of a time posting links. Just go to the Amazon page and type in: "Pressure washing fittings & hose to clean RV holding tanks."

The prices have come down so that's great. You will need a plastic fitting to attach to the RV tanks fluid outlet. I had one and modified it to fit. Check for video's on U-Tube.

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Old 02-02-2023, 09:05 AM   #21
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Grey Tank - 1/2 cup of Blue Dawn Dish Liquid after "EVERY" dump.

Black Tank - 1 pouch of Thedford Toilet Chemical, 1 cap fun of Calgon water softener,
1/2 cup of Borax Laundry Detergent after "EVERY" dump.

Dump the tanks only when they are "FULL" and not only 1/3 -1/2.

You will not have any problems going forward.
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Old 02-02-2023, 09:24 AM   #22
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Somebody told me to bump a bag of ice in the black tank when you leave camp to clean it. Anybody tried this??
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Old 02-02-2023, 09:44 AM   #23
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Somebody told me to bump a bag of ice in the black tank when you leave camp to clean it. Anybody tried this??
See my post #6, and think about it - in consideration of that post, warm is better than coo and, how long will the ice remain ice considering the temperature of the waste fluid in the tank.
Oh, and ice floats so depending on the aspect ratio of your tank (and how wild you drive) how much scrubbing will you get out of the ice?
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Old 02-02-2023, 10:53 AM   #24
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Somebody told me to bump a bag of ice in the black tank when you leave camp to clean it. Anybody tried this??
It doesn't really work, watch video...

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Old 02-02-2023, 12:35 PM   #25
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Regardless of what else you add to your tanks remember water is your friend. After an outing I will empty my tanks, refill them and empty them again. Before heading out I will fill my tanks 2/3 full and add a couple scoops of 'Happy Camper". After I'm home I will finish filling the tanks and within a day or two I'll drive the ten miles to the City's sewage treatment plant and drain both tanks. If I'm not holding anyone up I will add about five gallons of water to keep the tank bottom wetted down and ready for the next outing or I will add the five gallons of water to each tank when I get home. I never store my coach without some water in the tanks until I'm ready to put it away for the season then it gets some pink antifreeze added from the winterizing.
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Old 02-07-2023, 05:50 PM   #26
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Iíd recommend liquid laundry detergent or dish soap thatís used in a dish washer over Dawn or any liquid dish soap. The former donít produce suds and both are stronger cleaners than liquid dish soap. I tried Dawn on early on last 40 day outing and it didnít help but a few Tide pods dissolved in hot water then dumped into the each tank, which got filled half way, before a 3 hour drive worked wonders.
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Old 02-09-2023, 04:01 PM   #27
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The power washer attachment is called a jetter nozzle
https://www.amazon.com/MILLIE-Pressu...gion_id=972485

You would modify a clear elbow by drilling a hole for the power washer hose to enter at the top (when the elbow is connected to the tank valve Y) so that liquid doesn't exit the hole you drilled when the tank is draining. Connect the elbow to a drain tank. Dump the tanks. Push the jetter nozzle in via the elbow into the Y and then into the tank. Power wash the interior of the tank and piping. Observe the junk coming out via the clear elbow. Clean till clean.

An actual Jetter hose is also available. This is a stiffer than typical power washer hose. I don't use this for the RV because of the tight bends the hose needs to make to get into the tank. Make sure you don't put a quick disconnect on the nozzle as that will make it near impossible to navigate the bends, and certainly you don't want the nozzle to disconnect in the tank.
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Old 02-15-2023, 06:03 PM   #28
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We used this and it cleared up our sensors....
https://www.amazon.com/Unique-RV-Sen...grid_rp_0_12_t
A fellow very experienced full timer just recently recommended Unique to us. He said it's an "amazing" product. Bought a bottle but have yet to try it. Good to hear another recos it
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