Winterizing black tank using outside shower line

Dave H M wrote:
I guarantee you my black tank flush line does not self drain.

You can look at the lines and they are pink with no air in them. :h

djousma wrote:

dpgllg wrote:

wa8yxm wrote:
Dave, See my post here: http://www.forestriverforums.com/forums/f22/winterizing-newer-cardinals-with-nautilus-p1-water-management-system-119957.html

There is a link in it to the manufacturer of that water management system that has some additional steps to properly winterize the panel itself.

I happen to have that same panel in my Cardinal. As for winterizing the black tank flush, I just blow compressed air(at relatively low PSI) through it for a few seconds.

Thank you so much for the information. I was not aware of turning those levers to a 45 degree angle. This will be a great help!

Dave

Dave H M wrote:
I guarantee you my black tank flush line does not self drain.

You can look at the lines and they are pink with no air in them. :h

OH48Lt wrote:
No need to winterize the black tank flush lines. No water in them unless you are pumping it in. They drain. Have never winterized mine on several units I owned, no problems.

dpgllg wrote:

wa8yxm wrote:
First the OEM flush device on my RV was SELF WINTERIZING. Yup there is a Vacuum breaker mounted ABOVE the tank somewhere in the RV. with no pressure in the line this allows water to drain eitehr
Inlet to breaker, , back out the inlet

Breaker to Black tank.. into the tank.

At this point you are winterized, no need to do anything. PERIOD, and it worked just fine the first year that way

OP here,

How can you tell if your unit has this feature in the black flush line?

This new 5th wheel has so many new features over my old one. I never had a flush line or even a water control panel before. I just do not want to miss anything and cause damage to the unit. I forgot to empty the water filter on my old 5th wheel the first winter and it froze and broke.

I have the Nautilus P1 water system on this 5th wheel and I was planning on the flowing steps:

Empty all holding tanks Fresh, Grey and black

Drain hot water tank.

Set panel to city water

Blow out fresh water line with air compressor set to 40 psi. Open all faucets and low point drains until only air comes out.

Set panel to fill fresh water tank and blow out this line. Open drain on fresh water tank.

Blow out Black flush line. Drain Black tank

Use the winterize function and pump antifreeze until it comes out all faucets, toilet outside shower etc. I do not have a built in fresh water filter on this rig.

Connect outside shower to black tank flush and pump in antifreeze to fill this line.

Pour antifreeze down all drains to fill traps and some into black tank and then some to cover flap in toilet bowl.

I will remove all food items and anything that rodents might be attracted to. Make sure all windows etc. are securely closed shut off propane.

Close up unit remove battery to put on a maintainer at home.

Wait for spring!

If I have missed anything please let me know

Thanks!

Dave

wa8yxm wrote:
First the OEM flush device on my RV was SELF WINTERIZING. Yup there is a Vacuum breaker mounted ABOVE the tank somewhere in the RV. with no pressure in the line this allows water to drain eitehr
Inlet to breaker, , back out the inlet

Breaker to Black tank.. into the tank.

At this point you are winterized, no need to do anything. PERIOD, and it worked just fine the first year that way