What is the maintenance involved in a water treatment system?
It all depends on the system. Water oil separators require the least amount of maintenance as only one pump is involved, whereas mechanical filtration requires more (additional pumps, media filters, slide valves, pH/orp meters, and timers). Biological treatment is also a low maintenance system. Standard pump maintenance and coalescing media cleaning, which is necessary in all systems except the ECF, is all that is required.
The ECF system does not require a great deal of maintenance either. The anodes are a replaceable part and pump servicing is the extent of the maintenance.