Square key for small drain cover?

[lisap470]

Hi
Hope someone can help as I've Googlesd everything I can think of to find out how to get a square key to open the small drain cover I have outside my kitchen.
The drain is very badly blocked and my front path is totally flooded at the moment, I can't even try pouring any unblocking stuff down it as it's just not getting down due to the amount of surface water.
I've contacted my Landlord but he knows nothing of a key and as he's away for work at the moment, has left it down to me to source one! (Not happy at all about this!)
Any suggestions as to the best way to open it so I can get the rods down to try and unblock it?
Many thanks
Lisa

 

[big-all]

is the blocked part shared with another property ??

 

[lisap470]

No It's coming directly from my kitchen sink area, you can see pipes coming out the wall from the sink and washing machine which go into the ground next to the drain, everytime I empty the washing up bowl or do a load of washing it just gushes out on to the path.

 

[big-all]

the blockage could several metres away
if you can lift a cover farther away you may rule out the need to lift the cover your at

if there is a cover where your waste meets another properties waste and its full its your water companies responsibility
if its empty its your/your lanlords responsibility

http://www.tvha.co.uk/~/media/Files/Resident Services/Sewer Ownership Leaflet.ashx

 

[HERTS P&D]

Where about are you in Hertfordshire?

Andy

 

[lisap470]

Where about are you in Hertfordshire?

Andy

I'm in Stevenage

 

[HERTS P&D]

£75 to clear fixed price.

Andy

 

[Nige F]

£7.50 for a key