downspout into soil stack | Boilers | Plumbers Forums

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Discuss downspout into soil stack in the Boilers area at Plumbers Forums

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buff

standing outside a house in chester noticed the rain water downspout ran straight into the soil stack,it was the just above the wc waste outlet
is this legal
bob:confused:
 
Rain going into soil is fine - it's the other way that's rather iffy.
 
Hi. There are two problems with this practice.
1. Separate systems for soil and rainwater are employed to avoid overloading treatment works during wet weather.
2. The smells associated with soil/sewers will be vented at gutter level, which in most cases is near to opening windows. Which can become a health hazard to whose using the property.
 
As far as I am concerned they all end up going the same way under the ground...the only consideration I would make is to the smell venting at the top of the downpipe
 
Some households get a rebate on their water bills if the rain and foul water are kept separate

centralheatking
 
Current regs don't allow this, at least in my area but if it's already plumbed in then there's no obligation to change (thank goodness!)
 
depends how old the house is. a lot of houses used to operate on a combined system of foul and rainwater. the advantages being that the addition of rainwater kept sewer blockages to a minimum, disadvantage being higher costs of water treatment.

KJ
 
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