For domestic systems, typically every one to three years, though the exact frequency depends on the size of the system, the number of occupants and how well the system is maintained. Commercial systems may need emptying every two to six months. When WCI services your system, we will take a sludge reading and advise you […]
For domestic systems, typically every one to three years, though the exact frequency depends on the size of the system, the number of occupants and how well the system is maintained. Commercial systems may need emptying every two to six months. When WCI services your system, we will take a sludge reading and advise you on whether emptying is required.
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