I hope this is in the correct topic area.
I recently had to have my drains renewed as the old ones collapsed.
The soil pipe comes down inside the house then passes under the front of the house just above the foundations to the main drains.
When we first noticed the problem we tried rodding the drains as we thought it was just a blockage and this caused a wet patch to appear on the external brickwork to the house just above the drain.
Now that the drains have been renewed and evertything put back the wet patch on the brickwork still hasn't gone, can't tell if its still wet or just stained, it's been 3 weeks now and I thought it would of dried out by now. Do bricks tend to retain water for a long time, do they stain easily. any ideas ?