How far can damp rise?

[ChrisR]

Internal plastic soil pipe is against party wall.
It has branches at floor level in basement, ground and second floors.
Neighbour has a damp patch, 200mm diameter at about 2m high, in basement.
House is large early Vic, or older.

I found an inspection hatch at basement, floor level which was cracked and leaking a few drops.
So either the water was leaking here and rising about 2 metres, or there's a leak above which just happens to go through at that height.

I've heard damp can only rise 1 metre, but I've witnessed it going higher than that, many times.

What do you think?

Nearly all the pipe is boxed in. Any cunning methods of finding the leak if it's higher up? Lights and cameras?

Also posted in Plumbing section.

 

[noseall]

how far can damp rise?

a fair bit in one of these,

even further in this,

absolutely miles in this,

 

[ModernMaterials]

I've heard damp can only rise 1 metre, but I've witnessed it going higher than that, many times.

What do you think?

I have also heard that damp can only rise to one metre above ground level.

I would be very interested to see any evidence you might have of it rising to higher levels or indeed any levels.

 

[Bylough]

I was thinking, so I was- And I wondered if the reason for all the different findings on how far damp can rise might be-
Looking at the rising ground table around the building- would this variable issue be connected with the water pressure in each case?

('course, if you're by mountains- it's tough)
Every time it rains, it rains, pressure from heaven--