The workshop rented by Haigh for these murders did not contain a floor drain so he disposed of the acidified remains by pouring out the container on a rubble pile at the back of the property.
The workshop rented by Haigh at Sussex did not contain a floor drain unlike the workshop he had rented at Kensington. He therefore disposed of the acidified remains by pouring out the container on a rubble pile at the back of the property.