Toilet poor flush

Harry Bloomfield · 2018-11-26T12:59:05+00:00

We have two identical toilet pans, installed in the mid 1980's. Since install the flush of the pan action has been less than adequate, but now a little worse(1).What I am observing is the water is delivered mostly to the rear / back of the pan, just below the pipe, causing solid matter to just cycle down at the back then up again at the front, often for several flushes. So we keep a 1L plastic jug to hand, to fill with water, to assist the front to rear flush action. It suggests to me, that they would work fine, if only the flush water was made to come out of the front lip rather than the rear. Some flow does come out the front lip initially, but it soon stops, so it is possible.(1) The flush tanks are low level, just above the pans, linked via a right angled pipe. Originally they had a dual flush that allowed the tank to fill to the line. I have since replaced everything in the tank with a new duoflush, but the duo mechanism insists on a slightly lower water level to function properly.Has anyone any idea how I might be able to reduce the flow to the rear lip, to increase the flow to the front lip, as both a temporary test and maybe a more permanent fix if it works?

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fred 7 years ago

I don?t know how your family behaves in your house but a piss stinking carpet is never something we civilized people never had.

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Harry Bloomfield 7 years ago

Harry Bloomfield explained on 26/11/2018 :

..and it didn't really help. Originally most of the flow was down the rear, causing the water and bowl contents to rotate vertically, down at the rear and back up at the front.

My first attempt blocked the entire rear off, so there was only flow around the front lip, around 1/3. That due to uneven flow at the front, caused bowl contents to circle horizontally. I then widened the 1/3 out, but that just caused the bowl contents to rotate vertically, down at the front back up at the rear. So no real advantage gained and I have removed the pipe insulation.

Someone asked if it was level and yes it is roughly level.

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David 7 years ago

Harry Bloomfield explained on 26/11/2018 :

..and it didn't really help. Originally most of the flow was down the rear, causing the water and bowl contents to rotate vertically, down at the rear and back up at the front.

My first attempt blocked the entire rear off, so there was only flow around the front lip, around 1/3. That due to uneven flow at the front, caused bowl contents to circle horizontally. I then widened the 1/3 out, but that just caused the bowl contents to rotate vertically, down at the front back up at the rear. So no real advantage gained and I have removed the pipe insulation.

Someone asked if it was level and yes it is roughly level.

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The only observation with my Twyford loos is that the diverter needs to be adjusted to provide equal streams around the left-hand and right-hand parts of the bowl so that the two stream converge at the front of the bowl (if that makes sense). If the streams are unequal then the convergence will either be offset to the right or left and the flushing action will not be as effective as it should be.

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Jim K 5 years ago

Perfect excuse to get rid of the piss stinking carpet :-$

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Jim K 5 years ago

I see what you did there! :-)

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Toilet poor flush

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