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frozen bath waste pipe

17 replies
Found 7th Jan 2010
Hi, my bath waste pipe outside is frozen underground. I have a cast iron pipe. i have tried kettle water, sink unblocker, bicarbonate of soda, wire coat hanger but none work.
The cast iron pipe was warm when i put kettle water down the plug whole so the problem is definately underground and theres no way im lifting up slabs to get to the bottom of it.
Apart from waiting for it to thaw out, which could take days or weeks has anyone got any suggestions please??

  1. Misc
  2. Bathroom
17 Comments

Dont use the bath

car antifreeze or drain rods

It isnt frozen under the ground

Pray for Global Warming!

Hot salty water?

a quick google suggests that bleach is supposed to be good at melting ice. you could also try boiling water mixed with salt, since the salt would lower the melting point of the ice, boil the water first tho before adding salt else it will boil at a lower temperature. bu i'd try a bottle of thick bleach chased with a kettle full of boiling water. (again you mustn't mix it above ground cos the fumes can be deadly.

actually anti-freeze makes sense.

have exactly the same problem-plumber wont touch it-says there is nowt to do but wait for the thaw!

tried boiling water,salt-nothing has worked,no supermarket near me has any more salt in stock so cant keep trying-may resort to the car antifreeze tho!

i dont think the Environment Agency would be too happy with anti-freeze being poured down the plughole.

bruffterman;7463232

a quick google suggests that bleach is supposed to be good at melting … a quick google suggests that bleach is supposed to be good at melting ice. you could also try boiling water mixed with salt, since the salt would lower the melting point of the ice, boil the water first tho before adding salt else it will boil at a lower temperature. bu i'd try a bottle of thick bleach chased with a kettle full of boiling water. (again you mustn't mix it above ground cos the fumes can be deadly.



Salt increases the boiling temperature of water.

pghstochaj;7463378

Salt increases the boiling temperature of water.



Correct.
It decreases the freezing point

pghstochaj;7463378

Salt increases the boiling temperature of water.



Yeah, but it helps to melt ice, being the posters point. :lol:

I use salt and hot water. Can you drain the bath with a bucket into the toilet or maybe you did that. Put salt down any other plug hole that might lead to the same frozen pipe. Anyway of warming up the ground outside where you think the pipe runs, tarpaulin or something?

Banned

I'm having the same problem with my bathroom basin, funny thing is the bath is not effected :oops:, so i'm guessing the block is in the wall somewhere tried loads of bleach does not budge :x

suggestions apart from contaminating the water supply.... antifreeze ha :-D

I've had all manner of suggestions of don't use it and give the pipe a kick ( considering my bathroom is 2 storeys up yeah right lol )

moob;7463706

Yeah, but it helps to melt ice, being the posters point. :lol:



I think you missread the quote Pgh was replying to

moob;7463706

Yeah, but it helps to melt ice, being the posters point. :lol:



I guess you didn't read the post I was replying to then.

Edit: As above, didn't see that

i have exactly the same problem i took all the pipe inside my flat apart thinking it was the missus hair thats blocking it but it's not so must be frozen am gonna try salt water and hope it helps, Really wanna take a shower but cant
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