2024 310RL black tank flush fitting leaking on disconnect

[rbflapjack]

The black tank flush on my 2024 paradigm 310RL works fine and doesn't leak when connected, but every time I disconnect it I get about a half a cup to a full cup of water leaking out of the fitting on the Nautilus panel. It seems that maybe there is supposed to be a check valve there that isn't working. Does anyone know how to replace that fitting or check valve?

 

[UFF]

Mine does the same (2023 310RL). Always figured that was normal. I put a pan down there to catch the water. I thought the one way valve is closer to the tank so once it shuts the water is still left in the line.

 

[7426TRISS]

Mine has a vacuum breaker ln-line, when it failed, water poured out when I disconnect from the fitting. Check that.

 

[Fishfnatic]

My 24 310 does same. I just unscrew at faucet first snd that helps.

 

[Oregon_Camper]

This device will solve that issue plus one more .

I have it on our black tank inlet to stop any water from coming back. I will slowly turn black tank flush off using the valve on this 45 degree connection, then there is no way for water to come out. The second function is I feel the plastic connections only have so many lives to live. So I connect this one time...then use the brass end to connect hose.

 

[Midnight Rider]

I do same as Oregon Camper and it works great

 

[KCAlis]

I do same as Oregon Camper and it works great

Same as both Oregon and Fish. Just a few drops at disconnect.

 

[rbflapjack]

This device will solve that issue plus one more .

I have it on our black tank inlet to stop any water from coming back. I will slowly turn black tank flush off using the valve on this 45 degree connection, then there is no way for water to come out. The second function is I feel the plastic connections only have so many lives to live. So I connect this one time...then use the brass end to connect hose.

View attachment 3620

Thanks so much for the response. I will install this instead of searching for th3 check valve I thought was leaking,

 

[George]

All the water in the line between you and the vacuum breaker under the sink will drain when you disconnect. This is normal without other hardware. Don't worry it's not like you're dumping black or even gray water.
I use a two foot hose that remains attached to the flush connection. I'd rather it drain than putting a valve on it.

 

[stanburnb]

I solve it by turning off the water and disconnecting the hose from the spigot first.