Paul Farrell: I'm not a sanitary engineer, but I've worked alongside them for many years and read a lot in the literature, and from that I'm under the impression that when a tile field clogs, it's almost all right at the liquid-soil interface.
A new tile field, dosing siphon, flow meter, filters and more observation wells have recently been installed.
Q: What has been the actual cost associated with the tile field line cleaning?