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Report - Series 5a, Manchester - May 2012.

Discussion in 'UK Draining Forum' started by Ojay, May 11, 2012.

  1. Ojay

    Ojay Admin
    Staff Member Admin

    Nov 24, 2008
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    Series 5a, Manchester

    Another example of UU cleaning up it's act..

    This age old sewer overflow has been modified in recent years

    It includes a modern power screened bifurcation chamber and an offline detention tank with pumped return to store screened spill flows

    Evidence of which can be seen both above and below ground

    When the system is at capacity, the trunk sewer dumps it's load via the CSO, processing machinery filters the solids, and any discharge fills a 2,500m3 detention tank downstream

    As well as gracing the Irwell with some of Manchesters finest nuggets

    There is also a large Penstock which is operated manually from a split lid in the UU compound above

    My assumption is this is closed off when they come and pump the contents of the tank back into the sewer (this I concluded after having seen some plans for the place)

    Once again I was in the area trying to locate something else I have had my eye on, and decided to take a look at this as it's been on my list of leads for a while now

    Imagine my surprise again when I instantly recognised it as being something that concreteJungle had previously discovered, haha :thumb

    Still it was worth a look and good to finally see what lay below those grids, and despite the rain setting in I decided to press on as I'd already gone to the trouble to slide down the steep riverbank!


    Hidden amongst the now overgrown bank of the Irwell is an age old 4ft Brick Egg, the top section looked to be stone, but had been rendered in recent years and was dense with foliage

    A tree has also taken root, which has blown out some of the brickwork within the last 2ft or so of the outfall

    Clambering across I soon got a whiff of fresh, a good sign that my man flu was lifting, so I decided to head on in and give my lungs a quick blast :p:


    The Egg shaped overflow was quite stoopy, and had a misty cloud of p00p lingering within


    Luckily it was only a short distance before it joined the first inspection chamber

    I stopped briefly to stretch my back & grab a quick shot before crawling up the stoopy 1m RCP (as seen on the right in the below pic)


    Approx 20m up of the stoopy RCP is another inspection chamber, which incorporates a smaller overflow

    Having climbed over the filth, a 'curved weir' connects 2 x 4ft pipes

    The right hand one leads to a dropshaft marked by a Warning sign, and the left hand one connects to the screened CSO via a 3m stretch of concrete pipe

    4_2.jpg 5_2.jpg

    Once inside the CSO air quality wasn't great, also there is a huge Penstock hanging above the overflow, both which would make for a brown underpants moment if things went wrong :D


    I climbed up onto the escalator of crap to take a look at the trunk sewer beyond which flows peacfully from right to left


    For the 10 minutes or so spent in here grabbing a few shots I wasn't feeling it at all, and was glad to be finally back out for a gulp of fresh air

    Which begs the question, why do I do this ?​
    #1 Ojay, May 11, 2012
    Last edited: May 11, 2012

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