partial block w/m stand pipe

[onion_soup]

The water from w/m hose overflows from stand pipe

flooding floor . The pipe leading to the drain appears to be partially blocked ( will drain some water poured into ).

What can be used to unblock it totally without dismantling it ?

Things suggested so far :

Bleach

boiling water

baking soda

Any suggestions ?



Thinking of blocking off lowest end and filling with some kind of cleanser ?

 

[breezer]

none of the above.

caustic soda, followed by hot water from a kettle, be very carefull

 

[onion_soup]

none of the above.

caustic soda, followed by hot water from a kettle, be very carefull

thanks breezer

I couldn t find any caustic soda so bought some foaming drain cleaner

It didn t work

Now trying brute force approach * rammed 15mm copper pipe into blocked pipe*

The blockage looks like matted, harden paper/cloth Mache throughtout length of blocked pipe,leaveing a 5mm dia. route for water to pass.

Will buy caustic soda tommro to remove depoits from bends or should something else be used ? Blocked pipe is steel then plactic.

 

[fido]

If the blockage was caused by soap, grease etc that could be dissolved, the caustic soda should work but if it is fibrous material it might not. I would start by using a length of stiff wire with a hook formed at the end, to poke in and fish out bits. The other, potentially messy way to clear it is to poke a hosepipe down, try to hold rags round the outside of the hose where it enters the pipe and get an assistant to turn on the hose tap.

 

[onion_soup]

just an update

used a http://www.plumbworld.co.uk/614-2648 sink drain cleaning spring

to get a good flow of water. Replaced entire section of pipe because

of hard deposits of clothes fibres/washing powder etc

thankyou to everyone who replied

 

[fido]

This is not an appliance problem.

 

[onion_soup]

This is not an appliance problem.

washing machine floods kitchen floor is not an appliance problem ?

 

[kevplumb]

not if its the drain thats blocked

 

[onion_soup]

not if its the drain thats blocked

lol hello kevplumb

drain ? drain was clear, pipe was partially blocked

 

[fido]

To decide which category you should choose for a given question you should think about what sort of tradesman you would call in. In this case you would call a plumber ( I would include the likes of Dyno-Rod as plumbers). As an appliance engineer I would not undertake this particular job.