Help please again!
I have a lower ground floor room (that the architects refer to as a basement). It is an early Victorian house and has been used as a bathroom, kitchen dining room with fireplace and what have you since the house was built. I've had some damp (but it seems this might be due to a leaking drain at the front of the house).
The architects want to install a sump pump across the whole basement to waterproof the property. I took this on trust as the best option but my trust in them is severely shaken (I'm no longer convinced they know what they are doing).
In the course of digging out the house it seems the builders unexpectedly broke through existing waterproofing (it turned out I had this - I guess there was no way anyone could know this before hand. Its a very old house).
Is there any reason to have a sump pump rather than tanking?
Thanks!