I have version .020, similar system. The cable became very brittle near the pump inlet after 2 years of use. The cable literally broke in half. Tunza is very difficult to reach. I don't dare to plug it in again because there was an overvoltage before and I don't want to risk my life or that of my child for a cheap pump. I can deal with almost any type of fault, one of which is refusal to submerge the power cord (IP68).
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