One of the regular reoccuring messages that we receive is "How close can I site a Sewage Treatment Tank to my house".

If you examine the building regulations in England closely, it seems that the minimum distance that you need is 7m.  The only real answer can come from your building regulations department at your local council.  It seems to vary dependant on the particular officer and his interpretation of the regulations.  Biotank Ltd. would not recommend that a tank is sited closer than 7m to any existing structure.  It can be a problem. 

When siting a Biotank you need to pay attention to several aspects.  Firstly you need to decide where you are going with the water from the treatment tank.  Is it going out to a ditch or to a soakaway?  If it is going to a ditch then that is your starting point regarding depth of pipes and ultimately the treatment tank itself.  You need to have a minimum of 1 in 150 fall on the outlet pipe from the tank to the ditch.  You can get away with 1 in 200 if you go up to a 6" perforated pipe.  From the tank to the house you must have a fall of at least 1 in 80.  Preferably 1 in 60, to ensure that you do not get blockages.  These figures are the real determinant of where you sewage treatment tank will go.  Much in the same manner as siting a septic tank. It is important to do the leg work first before you decide where your tank is going.  If you are going to put in a soakaway then you need to have done a percolation test.  This is the only way that you will really know if your spare water is going to disappear.

There you go,  it is quite simple if you really put your mind to it.  Give us a call if you need more advice