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Connecting downpipe into Cast Iron soil pipe

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Mr M

from United Kingdom

Joined: 11 Jan 2006
Posts: 160
Location: United Kingdom
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PostPosted: Wed Apr 22, 2009 8:18 pm Reply with quote

I originally posted this in the Building section but received no responses so presumeably, it was in the wrong section. I am after some suggestions on the easiest and most cost effective way of dealing with the following:-

The hopper shown in the picture below is taking from left to right; 32mm Bathroom wash hand basin waste, 68mm down pipe from roof and 40mm Bathroom bath waste

this then goes into a 68mm down pipe which does not discharge into a gully but discharges all water at the side of the 4" cast Iron soil pipe into the formed channel. This channel then runs down into a gully which takes the kitchen sink and washing machine wastes

I think with the amount of water which is being discharged, this is having a detrimental effect on the adjacent Kitchen floor which is solid, not timber. The floor is uneven and has a 'hump' in it and the floor tiles are loose and are cracking underfoot. I think the water is saturating the Kitchen subfloor and I therefore need to eliminate it discharging directly onto the floor outside.

Rather than Installing a gully and having to excavate to connect this into the underground drainage system, Is there a way of connecting the 68mm downpipe (below the hopper), into the cast Iron soil pipe. I assume I would need some sort of fitting or adapter to clamp onto the soil pipe and that a hole would need to be formed in it or would the cast iron soil pipe need to be replaced in plastic and then a 'Y' or branch type fitting be Incorporated into this to connect the 68mm downpipe into.

Look forward to your thoughts and suggestions.

Mr M
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from United Kingdom

Joined: 28 Jul 2008
Posts: 262
Location: Cornwall,
United Kingdom
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PostPosted: Thu Apr 23, 2009 5:13 pm Reply with quote

Hi. Is not that easy. The hopper and 65 mm pipe if connected to soil would omit odour / smell from the soil pipe / drains , which is dangerous to health.
We can purchase strap on bosses for cast iron, which require a hole to be drilled in the soil pipe and then clamped into position, the wastes pipes are then connected (presuming the appliances they serve are trapped?) Good Luck
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Mw Roofline

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Joined: 30 Oct 2005
Posts: 2661
Location: Birmingham,
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PostPosted: Thu Apr 23, 2009 9:35 pm Reply with quote

Like justlead said, are the appliances trapped? It would look a little like spagetti junction but it can be done.
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