Toilet gurgling and sucking all water out

[Boogi11]

Hi, I'm very confused, my toilet has never missed a beat and has always worked fine, until last night. When I flush the water is now sucked out under vacuum I suppose, to the very bottom of the u bend, leaving the basin 50% exposed. Nothing has changed and no alterations have been made to the plumbing in the house. The toilet waste goes straight through the wall, into an external vertical stack then down into the drain (the drain is spotless and unblocked) the only other pipe into the stack is the washing machine waste pipe, the machine is in the kitchen, the washing machine waste pipe is cale tied into. An internal pipe, internal u bend, through the wall and then drops at about 35 degrees and pins the stack. I can't see if the top of the stack has a vent, I don't have a ladder tall enough? Any ideas.

 

[tryitandsee]

Has a bird made a nest in the top of the stack.

Has the top of the stack got a durgo valve www.screwfix.com/p/floplast-axv110-...tracking url&gclid=CMy6s7qlkrECFSsntAod7VhClA

 

[Boogi11]

Ok, just climbed up ladder, and it's not blocked? Any thoughts

 

[HERTS P&D]

Blocked manhole/drain line, lift up the nearest manhole cover and have a look.

Andy

 

[Boogi11]

Done that, and spotless, I can only presume that the stack has a block in it somewhere

 

[Terry7556]

if the stack has a block wheres the water going to? not sure about that but bear with me for a minute

 

[Hugh Jaleak]

Lost a rim block recently?

 

[Dan Robinson]

Call one of the knob jockey's from Pimlico - perhaps they'll find your long lost pager .

 

[peterperfection]

Call one of the knob jockey's from Pimlico - perhaps they'll find your long lost pager .

Cant knock Pimlico Danniboy--
there goes a guy who knows how to make money.

 

[Boogi11]

Lost a rim block recently?

Oh yeahhhhh, little ****s.....that I'll be my 2year old, wll it can stay there till I change the big in our weeks...can't understand how it's not blocked the toilet though

 

[longdogs]

Are you sure it's not Daphne from Eggheads having a drink?