We live on a hill with shared drains and we are house #2 on the chain. There is also house #3 and #4 and so on. A few days ago one of our drains blocked, backed up and caused a huge flood right outside my front door. The dynorod people came quickly and cleaned up the blockage and 2 hours later the next drain down the hill blocked too and this time it backed up and flooded my garden! The man from dynorod came over again and unblocked this drain. But I am left with two flooded areas. Who can I call to come and remove all this sewage? Can I call Thames Water ? The man from dynorod said that these drains are responsibility of Thames Water and had he known we are on a chain he would not have touched them.