For years, sewage discharging from cleanouts affected as many as 40 properties at the 650-unit Millpond mobile home park in San Jose, Calif.The 6-inch terra cotta clay sewer lines had bellies packed with grease and debris. Pipe bursting and lining systems did not work because they followed the host pipe without correcting the problem. Repairs involved moving the modular homes off their concrete foundations, then open-cutting to replace the bad sections.The scenario changed when the park owner hired Rod Herrick of H&H Co. in San Martin. After the next sewage eruption, Herrick used a UB-40 tunneling machine from Roddie Inc.
