help with damp, I think from condensation

[Colin Green]

I recently noticed damp at the bottom of the downstairs wall next to the toilet. I've had a look at the concealed cistern and the concrete floor down there is wet. When I looked, the cistern was soaked in condensation from the water line down. I flushed the cistern first thing and held the valve closed with an elastic band, then I wiped everything down with paper towels. There's still a bit of water in the bottom. A couple of hours later, everything was still dry, so the pipe from the bottom of the cistern seems not to be leaking.

The room next door has a tumble drier that vents into the room. The pipes go through the wall to the cistern and they're not sealed. Despite the pipes being behind cupboards, I bet that's the main source of the humidity.

Anyway, what's the best remedy for this? would sprayfoaming the cistern stop the condensation? What else could I do?

 

[blup]

That area tends to get damp being in a corner and next to the condensation that forms on the wc. Keep it wiped down or increase the heating

 

[foxhole]

You are venting a tumble dryer into a room?

 

[Colin Green]

You are venting a tumble dryer into a room?

yeah, we moved in 3 months ago and haven't yet thought of a good solution. The utility room doesn't have an external wall. My wife flat out refused to get a condensing tumble drier. Perhaps now she'll change her mind.

 

[JohnD]

yeah, we moved in 3 months ago and haven't yet thought of a good solution. The utility room doesn't have an external wall. My wife flat out refused to get a condensing tumble drier. Perhaps now she'll change her mind.

You can hire a core drill to cut a neat hole in a wall. Your drier must vent outside. Perhaps you can run a duct through the WC. Perhaps you could put it in the garden shed, or vent it through the back door, or put the drier in a more suitable room.

While you have it, you can do one for a cooker hood and a bathroom extractor if you don't already have one.

A vented drier is cheaper to buy, has less to go wrong, and works faster.