winterising my isata 5

[Tom2129]

Can anyone give me any info on winterising my Isata 5?
Tom....

[SeaDog]

try the search box at the upper right of the page there are hundreds of articles about winterizing I'm confident there some covering your rig.

[Whalenss]

Originally Posted by Tom2129

Can anyone give me any info on winterising my Isata 5?

Tom....

I posted this in another wintering post. I used compressed air. Will add comments below if you use RV antifreeze.

- drain water from fresh water tank
- pull out water filter
- open low point drains. Open faucet. When done close faucet
- follow winterizing instructions for Truma hot water heater
- blow out water lines, including ice maker, outside shower handle and toilet line. Use 40 psi and leave connected over night and run ice maker. ( buy a fitting to connect to city water and assumes you have a compressor where the psi can be set
- pour RV antifreeze in the drains including toilet.
- drain grey and black tanks.
- full tank of diesel. I put in a cold weather additive.
- check tire pressure
- put in mouse traps just in case there is an uninvited guest
- put in moisture absorber
- make sure coach batteries have full charge then disconnect batteries using disconnect switch
- disconnect the two vehicle batteries.

If using RV antifreeze in water lines:
After winterizing Truma, remove the lower false drawer front in the bed room and close the valves to bypass the hot water heater. Then you need to tap into the water line running into the water pump. You can buy a wintering kit or a hose with a fitting. Turn on the water pump using hose to suck up RV antifreeze. Run through all lines including ice maker. Pour rv antifreeze down the drains.

Other will have adds and good comments based on what they do.

[Ragtop]

I thank I may copy your organized method to winterizing our Isata 5's and tape it inside a cabinet door. Thank you.

[DavidMort]

With ISATA 5 (at least on our 2017) there are a couple of gallons of water in the fresh water tank that the drain will not get out on level ground. Since the RV antifreeze is not supposed to be diluted you would need to put a lot in be safe. I park it on a slope with the left front highest to get most of this water out. Enough so that when you are level the water left can freeze and not hurt anything. You can still put RV antifreeze in the fresh water tank but takes a lot of rinsing to get it all out in the spring.

[Whalenss]

Agree, never want to put RV antifreeze in the fresh water tank. Difficult to get it all out. Small amount in the bottom doesn’t matter. If it freezes there is plenty of expansion room.
One more item. There is a small screen filter between the fresh water tank and pump. Unscrew the clear bowl with the screen to empty any water and clean the screen.