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• PRO

  Gary RK January 5, 2018 at 6:15pm

  Is there a drain chamber cover in that patio area somewhere and it’s just backfilling .....
• PRO

  Richard Gadsby January 5, 2018 at 6:33pm

  A bit more info just come through!

  there is supposed to be a soak away and a couple of gravel filled trenches (the blue pots and in between the 2 raised beds next to them)

  ill ask about a drain cover but have a feeling knowing my wife’s friend that this has been done on the cheap to begin with so there won’t be one:)
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  Luke brooks January 5, 2018 at 6:35pm

  Fence line beds and borders are all higher so assume lowest patio to be lowest part of garden
  Is the gravel area free draining or over clay ? Water table may have risen and until goes down may have no where to go naturally drain
• PRO

  Andrew Betteridge January 5, 2018 at 7:11pm

  If there is a possibility that a water main is leaking you can get a sample tested to see if it is tap water that has been treated.
  
  Similarly you can get it tested to see if it contains effluent.
  
  To be honest though it looks like good old fashioned rain water and a lack of drainage.
  
  Andy
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  Ben Carter January 5, 2018 at 7:19pm

  Is that a hole in the wall on the Right hand side of the picture?
  • PRO

    Richard Gadsby > Ben Carter January 5, 2018 at 8:29pm

    No don’t think so I thought that too. This is the only picture I’ve seen.
    It seems because I cut grass I’m an expert at drainage?!!!!!
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      David Benson > Richard Gadsby January 5, 2018 at 11:31pm

      what type of membrane has been used under the gravel it could be polithine and running the water onto the flags as the gravel seems to have a lot of water standing on it 

      defiantly a drainage prob maybe the soakaway has been backfilled with rubble instead of a membrane wrapped cadge and not having enough holding capacity for the area     
      • PRO

        Richard Gadsby > David Benson January 6, 2018 at 9:13pm

        A bit more info has come my way. The soak away is in the gravel next to/under (not sure) the raised beds on the left and a trench in there too.
        It seems the patio area was the same height as the edges of the fence (grass I think) and was excavated and patio laid.
        It happens after even 1 day if strady rain it seems.
        No weed membrane was put down.
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  Colin Hunt January 7, 2018 at 6:43am

  My first impression is that the area is bound by brickwork with, I would think a concrete footing, creating a pond.  A soakaway is of no use if the ground is water logged.

  If the gardens are on a slope, surface water will percolate from one garden to another, building a wall such as in the pic can cause a dam effect.