Heated Holding tanks

[Hudsoner]

Originally Posted by SuperD

Personally I would use 3M Weather Strip adhesive, stuff sticks firmly to just about anything at any reasonable temp.

Tanks on our Windsport are enclosed in the wet bay and are protected from weather and road hazards.

It might be required to use some primer first to condition the surface to be attached to.
I am a retired 3M labby, and the next time I have a chance to talk to one of the adhesive labby's, I will try to find out what they feel would be the best way to attach those blankets.
Once I know this, I will share it here.
I definitely would use some kind of an acetate based solvent to prime the surfaces.

[SuperD]

Hudsoner that would be great for you to check!

[Hudsoner]

Originally Posted by SuperD

Hudsoner that would be great for you to check!

But it has to wait until later this year, because I am heading south pretty soon!

For the time being, I would say some kind of 3M automotive trim adhesive (either the gray tape with the red liner, or the paste like stuff in a tube) should work pretty good if the surface has been cleaned and primed well, and the application temperatures are 60ºor higher for the time period the stuff required to cure (about 24 hours).
It should also be mentioned that the tape contains a pressure sensitive adhesive.
These kinds of adhesives are actuated by the elimination of oxygen! That means, the higher the initial application pressure is (causing more of the surface area to be depleted of oxygen), the stronger the resulting bonding will be! The initial pressure should be applied for several minutes. The initial pressure thing applies to all versions of pressure sensitive adhesive tapes.

[SuperD]

Personally, I would use the 3M glue in a tube, so far I haven't found anything it wouldn't stick to if it's clean and dry.

[Hudsoner]

Originally Posted by SuperD

Personally, I would use the 3M glue in a tube, so far I haven't found anything it wouldn't stick to if it's clean and dry.

It's just a little more messy, and needs longer curing time, which needs, it needs to be fixed in place for a longer time.
It is used a lot in the automotive industry to apply trim components to vehicles.
On the other hand, Boeing and Airbus are using a lot of pressure sensitive tape to put their aircraft together!
Yes, a lot of the commercial aircraft is glued together!

And if you think about, our motorhomes are glued together, too. Vacuum bonding is nothing but gluing!

[dPad2]

I have a new 2017 Vegas 24.1. Anyone know where the switch is for the holding tank heat pads? Was probably told but TMI for my brain to retain all. THX!!

[Larry]

They should be on the panel just inside the door next to the switch for the fresh water pump, etc.

[Buzz102]

Manual Page "111"
" Your vehicle’s holding tank compartments are heated by the furnace duct work. It will heat the tanks when the furnace is operating."

[sage]

Originally Posted by JamieGeek

They are controlled by a thermostat and won't come on until its cold enough. They will keep them warm enough to not freeze and not really get that warm to the touch.

Is there a limit on how long it's safe to leave the tank heaters on? I may be in Massachusetts this winter for up to three weeks, during some portion of which the Vegas will be unoccupied. I'm wondering how long I can safely leave the heaters on to insure that the holding tanks don't freeze up?

[JamieGeek]

Originally Posted by Buzz102

Manual Page "111"
" Your vehicle’s holding tank compartments are heated by the furnace duct work. It will heat the tanks when the furnace is operating."

Nope, not on an Axis/Vegas: The holding tanks are below the chassis and have no duct work going to them.

The switches for the waste heaters, on ours, is on the main panel (They are the red switches).

[JamieGeek]

Originally Posted by sage

Is there a limit on how long it's safe to leave the tank heaters on? I may be in Massachusetts this winter for up to three weeks, during some portion of which the Vegas will be unoccupied. I'm wondering how long I can safely leave the heaters on to insure that the holding tanks don't freeze up?

You could always buy a couple of gallons of the pink stuff and dump it down the drains after emptying the tanks. Then you wouldn't need to leave the heaters on. You'll also want to either winterize the plumbing or leave an electric heater running (I'd probably leave both the main furnace running and the electric heater running setting the electric heater's temp a few degrees higher than the main furnace. That way you have electric heat and the main furnace as a backup if you lose 120VAC.)

[DrTerriEdwards]

We are about to encounter cold weather. Do you know if we have heating pads for the grey and black holding tanks on the 2019 Aria 3901 and if so, how do we turn them on?

[m1noel]

Dr. Terri,
The Aria's do not have heating pads. They have a duct from the furnace that goes into the wet bay. So, if you are using your furnace, you should not freeze your water, holding tanks or plumbing.
Mike

[Hooligan2]

On the THOR Sprinter based models, some have ducted heat to the holding tanks and some heat pads. ON those models,- Wording is usually. "Enclosed heated holding tanks" for those that use the ducted heat from the furnace.
"Heated holding tanks" usually means exposed tanks using electrical heat pads. Fresh water tank is inside.

Heat pump does nothing for the holding tanks--but heat pump also not effective below 38- 40 degrees anyway.

When not winterized, Keep the interior heated with the furnace, fill the fresh water tank and remove water hose in very low temps.

[Bob Denman]

You'd better turn down the heat: the poo is starting to boil!

http://www.thorforums.com/forums/att...1&d=1552603653

[Hurricane]

2018 Hurricane here and I found two fuses marked Tank Heaters 20Amp and Tank Heaters 2 15Amp. No switches anywhere and I looked for heating pads on all 4 tanks, and no visible sign of any, or any wires other than the Tank level sensors.

[jdharrington]

Originally Posted by SuperD

I have always left grey tank valve open, closing the day before to flush hose after dumping black. I've been RVing a long time and have NEVER heard of rats coming up the hose. I've had mice and squirrels get in around the access hatch but stopped that with a large sponge donut pushed in around the hose.

On our Tuscany the tanks were heated by the furnace, never had a problem, even when temp was around zero. Tank heating pads, like the ones on our Windsport, work like "heat tape" and kick on when temps drop. Shouldn't have a problem as long as they are functioning.

Hi SuperD,

We have a Windsport 29M and there are switches on the panel above the entry door that are for the Gray and Black Heated Tanks.

The Manual for our Coach says the tanks are heated by the furnace. Can you confirm that the tanks are heated by turning on these switches?

The temperature was below freezing for a couple of days and I had the switches on but the Gray water tank never seemed to warm up to the touch on the bottom of the tank but the Black water tank did feel slightly warm.

Thanks

[Bob Denman]

https://www.thorforums.com/forums/at...1&d=1641398196