Winterizing and Black tank flush

[Jcad33]

I have searched for a while on here but came up empty. So I’ll have to ask. I winterized today and just wondering if there is anything I need to do to the black tank flush. Trailer is a Gray Wolf 26DBH. Thanks in advance.

[djeirlessr]

I winterize my Crusader using my outside shower connection. I connect it to the city water connection and pump antifreeze through everything but the water heater. When done I connect there shower hose to the black water flush and run antifreeze through that also.

[MartyQ]

I blew the line out with air. No antifreeze in that line.

[woodyrock1]

I never do anything to my black flush probably because I never thought of it. Maybe I am just lucky, I never had an issue and the winters here are brutal.

[sgtlm17]

Originally Posted by Jcad33

I have searched for a while on here but came up empty. So I’ll have to ask. I winterized today and just wondering if there is anything I need to do to the black tank flush. Trailer is a Gray Wolf 26DBH. Thanks in advance.

Always blow mine out with air.

[Witch Doctor]

I guess blowing out is another leg of protection, but I don't use air at all and I don't put anti in either, Why? If it's higher then the head and inlet there is no water in the line period. The valve itself doesn't hold water, never had a problem yet. But if I did blow my lines, I guess it wouldn't hurt being you have everything there already, would break a compressor out just to do that NO.

[Platokidd]

Originally Posted by MartyQ

I blew the line out with air. No antifreeze in that line.

x2

[Jcad33]

Originally Posted by Witch Doctor

I guess blowing out is another leg of protection, but I don't use air at all and I don't put anti in either, Why? If it's higher then the head and inlet there is no water in the line period. The valve itself doesn't hold water, never had a problem yet. But if I did blow my lines, I guess it wouldn't hurt being you have everything there already, would break a compressor out just to do that NO.

I didn’t realize that the valve didn’t hold any water. I may just be overly cautious.

[Witch Doctor]

Think of it as a check valve

[youroo]

Originally Posted by Jcad33

I didn’t realize that the valve didn’t hold any water. I may just be overly cautious.

Hold on now,some systems use a rotating nozzle others use a spray head,the supply line coming to these is "Random" at best in loops and curves! Water can be trapped around the Nozzle attachment to Tank area! Your choice to gamble with your unit for a Little cost of A/F,vs cost to repair! Youroo!! PS next Spring your Buddy will say "Damn yours must be Plumbed Different than Mine"!

[MartyQ]

Agree 100%. I prefer to gamble at the craps table!!

[Witch Doctor]

Originally Posted by youroo

Hold on now,some systems use a rotating nozzle others use a spray head,the supply line coming to these is "Random" at best in loops and curves! Water can be trapped around the Nozzle attachment to Tank area! Your choice to gamble with your unit for a Little cost of A/F,vs cost to repair! Youroo!! PS next Spring your Buddy will say "Damn yours must be Plumbed Different than Mine"!

Getting paranoid in our old age? Don't burn all my firewood in that heated barn that you keep Molly in for the winter. [emoji120] [emoji15] [emoji482]

[Witch Doctor]

Who has a easy way of adding AF, to your black flush line, please don't tell me to take the shower hose apart, not all trailers have outdoor showers. It might help someone here, not to high jack the thread but the question has been asked what to do.

[sgtlm17]

The black tank flush line is a line that goes from inlet on side of coach to an outlet inside black tank. It may have a loop or curve in the line that holds water. Simply Blow air through line to clear out any standing water. IMHO you do not need to try to get antifreeze in that line.

[youroo]

Originally Posted by Witch Doctor

Who has a easy way of adding AF, to your black flush line, please don't tell me to take the shower hose apart, not all trailers have outdoor showers. It might help someone here, not to high jack the thread but the question has been asked what to do.

Hey W/D,you put Way to many Restrictions on this! We have been using "Your Firewood" in the courtyard during our "Family Five Drink Fest",Sorry you can,t be Here! Your "Ohio Family" said they will Drink 1 for You,I said they better drink a LOT more than that! Youroo!!

[russhd1997]

Originally Posted by Witch Doctor

Who has a easy way of adding AF, to your black flush line, please don't tell me to take the shower hose apart, not all trailers have outdoor showers. It might help someone here, not to high jack the thread but the question has been asked what to do.

I use this.

http://www.forestriverforums.com/for...1&d=1509297100

[Witch Doctor]

Originally Posted by russhd1997

I use this.

http://www.forestriverforums.com/for...1&d=1509297100

I like that idea, not bad at all.

[bajamike1]

The black tank flush is open on both ends which allow all water to drain out either into the black tank or onto the ground. The check valve/vacuum breaker doesn’t hold or trap any water.

[Jcad33]

Originally Posted by russhd1997

I use this.

http://www.forestriverforums.com/for...1&d=1509297100

I saw a transfer pump like that at Menards for 7 bucks. Pretty sure it would be a good investment. My outside showers would not reach unless I devised a hose system to reach it. Think I’ll run some air through it then add a bit a AF to it. Just to be on the cautious side.