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W/C possible syphonage.

 
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zubsgela



Joined: 15 May 2008
Posts: 9
Location: Blackburn, UK

PostPosted: Thu May 15, 2008 9:03 pm    Post subject: W/C possible syphonage. Reply with quote

Hi all i went to see a w/c the other day at a friends house and when you flush it the cistern fill and drains perfectly but there is a problem. when the water goes in to the pan the water keeps getting pulled into the drain resulting in the water level being low in the w/c pan. this is followed by a vibrating loud noise and air bubbles. Can anyone shed some light on this.
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thescruff
Moderator


Joined: 03 May 2003
Posts: 4659
Location: Bath

PostPosted: Thu May 15, 2008 9:55 pm    Post subject: Reply with quote

Blocked drain or no air vent
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zubsgela



Joined: 15 May 2008
Posts: 9
Location: Blackburn, UK

PostPosted: Thu May 15, 2008 10:28 pm    Post subject: Reply with quote

The drains are definatly not blocked beause it drains correctly. I had a quick look at the airvent and it seemd to look pretty clear, no debri or nest on it. I will have a further look by going up a ladder. whats the best way to clear any dirt from there if any?
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thescruff
Moderator


Joined: 03 May 2003
Posts: 4659
Location: Bath

PostPosted: Thu May 15, 2008 10:43 pm    Post subject: Reply with quote

I still fancy a blocked drain, have you checked the inspection chamber.

the vent if blocked can be rodded from the top
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zubsgela



Joined: 15 May 2008
Posts: 9
Location: Blackburn, UK

PostPosted: Thu May 15, 2008 10:46 pm    Post subject: Reply with quote

I think il check the inspection chamber and vent. i only doene a quick visual inspection and seemed to have got confused.
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