HELP please log burner leaking water

[Dexlan]

Hi all
recently purchased a property with a log burner with insulated flue. Water is somehow getting into the insulation, which is causing a drip in the house at the lowest point behind the log burner. I have been up on a ladder to inspect the flue but can’t see any damage to the flue that would allow water ingress. I have been testing joints with a hose pipe on low flow to see which it could be and I suspect it could be at a 45 degree elbow as the drip appeared inside again after testing that joint but again can’t see anything wrong with it install wise or condition. 
 

I also had the cowl changed on the top as it was delaminating and seemed in poor condition but it hasn’t changed the dripping. Any ideas please ? As the only other thing I can think of now is to install a new flue. Costly! See image

thanks in advance

[Bonner]

What is the white stuff around this joint? Shouldn’t need any sealant on these flue systems. You might need to remake some joints or replace an elbow, certainly don’t need a whole new flue!

[JohnMo]

I would get your local stove company in to do a full inspection of fire and flue.

 

Spraying water when you know the insulation is already wet isn't a good idea.

[Dexlan]

Thanks all will give them a ring 

 

cheers