The prof is the pudding as they say. This tank has since the start for nearly 6 years ago been driven by pumps from Coral box and Jebao- It is a no WC system and at least 4 ICP test a year. The ICP tests have not shown any signs of substances that may have come from the pumps during this 6 years. I have two Jebao RW-8 wavemakers - the oldest model. I have changed 5 pump motors during this time but I do never clean them because they are hidden in the background - it take some times to "dig" them out

- They are in rather narrow and small caves and I can+t change to the newer models. These pumps have electronics in the pump - newer models have all electronics in the controller, hence much longer life span.
Sincerely Lasse