Damp on external wall

[Mark Osborne]

Hi there

Just found some damp on an outside wall, it's quite a uniformed circle shape with what I am guessing is efflorescence just wondering if anyone had any idea where this would be coming from. Doesn't seem to be coming from ground level as far as I can see, have attached some pictures I did notice there seems to be a bit of a leak coming from one of the joints on the smaller black pipe pictured which runs from my boiler but doesn't seem like enough to be causing such a big patch.

Thanks

 

[Harry Bloomfield]

It seems to be centred on the fall pipe hopper. Have you checked that is clear?

The wall appears to be stained as well.

 

[Mark Osborne]

Thank you for the reply.

The hopper is all clear, just went out an looked and there is water running down the wall now coming from a joint on the small black pipe, it's seems to be running down the pipe and dripping on to the wall just beside the hopper.

Attached photo hopefully it's clear enough.

 

[Harry Bloomfield]

The hopper is all clear, just went out an looked and there is water running down the wall now coming from a joint on the small black pipe, it's seems to be running down the pipe and dripping on to the wall just beside the hopper.

All you need to do then, is fix the leak.

 

[Mark Osborne]

Yup hoping that will do the job.

Only concern was how big the stain is compared to the small leak was worried something else was going on somewhere and if I would need to worry about anything interior although there are no signs of damp inside the house as yet.

 

[Harry Bloomfield]

Yup hoping that will do the job.

Only concern was how big the stain is compared to the small leak was worried something else was going on somewhere and if I would need to worry about anything interior although there are no signs of damp inside the house as yet.

Wind will have blown it over the wall.

 

[Mark Osborne]

Ah never thought of that!

Will get the ladder out tomoro and get the pipe sorted thanks for your help.

 

[Mark Osborne]

Got up and sorted the leak at the joint so just have to wait on everything drying up now hopefully.

Thanks again for the advice.