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Report - Scavenger, Bolton - October 2015

Discussion in 'UK Draining Forum' started by Ventena, Oct 20, 2015.

  1. Ventena

    Ventena 28DL Full Member
    28DL Full Member

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    The CSO was accessed via the 1100mm RCP outfall to the river Croal, in a secluded area. The first chamber is just a few metres in. The original overflow chamber would have been straight ahead from here, however modifications were made a few years back and this has now been walled-up and the tunnel now makes a 90° turn.

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    Downstream, the RCP leads to a new, larger overflow chamber which contains a processor.

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    The sewerfresh as it makes its way through

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    It is over this wall that any effluent makes its way to the Croal in the event of the detention tank being unable to take any more sewage.

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    At the other side of the overflow chamber is another length of RCP which takes the effluent during overflow. A few metres in is another chamber on the other side of a penstock.

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    At this point there is a 90° turn to a short length of RCP which leads to a vertical drop. This is where overflowing sewage enters a 1600m² detention tank - which unfortunately I was unable to gain access to on this visit.

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    And here is an image of this vertical drop as seen from above:

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    #1 Ventena, Oct 20, 2015
    Last edited: Oct 20, 2015
    Snake Oil likes this.

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  2. concreteJungle

    concreteJungle 28DL Regular User
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    A ladder into the tank would be too easy!
     
  3. Ojay

    Ojay Admin
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    Was a stinker when I did this CSO, was rather glad to be back out in the fresh(er) air
     
  4. Ventena

    Ventena 28DL Full Member
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    Wasn't too bad when I went in, the air in the processor room wasn't too great though, couldn't stay in there too long
     
  5. Snake Oil

    Snake Oil go in drains
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    I missed this first time around, looks like a typical Bolton back breaker :D
     
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