I have a downstairs cloak with a toilet and sink as well as an upstairs bathroom.The downstairs toilet worked fine up to a week ago when it started to do the following:when you flush, the pan fills with water,then drains slowly until there is hardly any water left.Large bubbles of water then erupt from the pan for quite a while after.Ihave had the drain jetted and there is no blockage.If you remove the inspection plug from the soil pipe the toilet flushes normally.the soil pipe does not have a vent to the roof but goes straight to the main drain.Any ideas would be welcome.many thanks

jcleason, April 2005

it's very hard bud\

unaib, April 2009

many thanks sam.after several buckets of water the wc is working fine again.thanks again

jcleason, April 2005

You'e had the drain jetted, but you've not checked for obstructions between the U bend of the WC and the outlet to the sewer I suspect that this is where lies the problem.
What happens if you poor a bucket of water down the toilet as appposed to conventional flushing? (More emmediate weight in water may help to clear the obstruction).

Sam, April 2005