Dear DIYNOT folks
A few years ago I bought a 1980's flat with a loft. The bathroom extractor fan was broken so I got a man round. The fan feeds into a vertical pipe that goes thru the loft and exits thru the roof. The man said the fan was broken due to rust from condensation coming down the pipe. He then said the cure was to replace a section of the piping with a long flexible hose: the condensation would settle in the hose and evaporate gradually. That cure was implemented[X] and I now have to empty the hose periodically.
Flash forward three years. I have developed condensation in my loft. And I'm beginning to think the hose and the condensation are connected, and that the man may have been in error. I have replaced the man with a more reliable handywoman and I have also gotten a reliable plumber. And now I need to work on a cure.
I have noted the contents of //www.diynot.com/forums/viewtopic.php?t=160032 . I have modified my behavior (less showers, no drying clothes in flat, switch heating off in rooms that are empty) and my handywoman is coming around in January to implement the "quick wins" (tighter loft trapdoor, cut loft insulation away from roof edges to free circulation, stop up holes in ceilings, etc). But I need to know what is the best cure to the fan problem.
So I'd be grateful if you kind people would tell me which of the following would work:
I presume option 5 would be the best, but my lease (my flat is leasehold) has a clause saying "no structural alterations nor structural additions" and I do not know if option 5 will violate that. So I have to investigate the other options.
Thank you for your time.
[X] [1] [2] [3] [4] [5]
A few years ago I bought a 1980's flat with a loft. The bathroom extractor fan was broken so I got a man round. The fan feeds into a vertical pipe that goes thru the loft and exits thru the roof. The man said the fan was broken due to rust from condensation coming down the pipe. He then said the cure was to replace a section of the piping with a long flexible hose: the condensation would settle in the hose and evaporate gradually. That cure was implemented[X] and I now have to empty the hose periodically.
Flash forward three years. I have developed condensation in my loft. And I'm beginning to think the hose and the condensation are connected, and that the man may have been in error. I have replaced the man with a more reliable handywoman and I have also gotten a reliable plumber. And now I need to work on a cure.
I have noted the contents of //www.diynot.com/forums/viewtopic.php?t=160032 . I have modified my behavior (less showers, no drying clothes in flat, switch heating off in rooms that are empty) and my handywoman is coming around in January to implement the "quick wins" (tighter loft trapdoor, cut loft insulation away from roof edges to free circulation, stop up holes in ceilings, etc). But I need to know what is the best cure to the fan problem.
So I'd be grateful if you kind people would tell me which of the following would work:
Option 1) Replace the flexible hose with a vertical pipe as before [1]
Option 2) Replace the flexible hose with a vertical pipe but with a proper condensation trap,[2] with the overflow being directed to a bottle/canister will have to be periodically emptied.
Option 3) Replace the flexible hose with a vertical pipe but with a proper condensation trap,[3] with the overflow being directed to the soil pipe (which runs thru the roof, loft, my flat, and the flat downstairs)
Option 4) Replace the flexible hose with a vertical pipe but with a proper condensation trap,[4] with the overflow being directed to the soil pipe and many u-bends introduced to prevent smells backing up.
Option 5) Replace the flexible hose with a vertical pipe but with a proper condensation trap,[6] with the overflow being directed to the outside via a horizontal pipe.
I presume option 5 would be the best, but my lease (my flat is leasehold) has a clause saying "no structural alterations nor structural additions" and I do not know if option 5 will violate that. So I have to investigate the other options.
Thank you for your time.
[X] [1] [2] [3] [4] [5]