Grey open

[Russellvh]

We are full timers. First exposure to multiple days below freezing. Normally we leave the galley grey tank open and close it a couple days prior to black tank flush day. During freezing days is it better to close it or does it make a difference?

I use tank heaters and a furnace with a duct in the under.

 

[Neal]

In my opinion you should stow water and sewer hoses if subject to freezing.

 

[Russellvh]

Forgot to mention I do have a heated hose.

 

[Diesel Pusher]

Speaking from experience, I'd close the grey water gate and put the sewer hose away. I won't make that mistake again!

 

[AbdRahim]

Sewer hose is empty, so I don’t worry about that. I do have a heated hose and tank heaters. My bays have thermometers and at least down to the low 30’s, my bays are still 10 degrees above. When down that low I run the furnace (heats the water bays) for 15 minutes a few times during the night. Haven’t had any problems. Keep in mind, my experience is freezing temps for only a few hours per night.

Btw, I never leave the grey open.
If I were to be in extended freezing temperatures, I would wrap the sewer hose with insulation and aluminum foil or use heat tape, if I could justkeep the temperature at 40 degrees.

 

[team bradfield]

I close the valves and unhook hoses, fresh water tank full

 

[RKins]

Leaving the sewer hose connected and the grey open will certainly welcome sewer flies into your home. You hope all your traps are wet but if one isn't, they're inside your house.