Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
I have one in my 225. Its definitely too much flow for a 75. They do sell it now with a variable power supply which lets you adjust it to a more moderate speed.
I've been running it since they first came out and have no complaints. Programmable, quiet and powerful. Time will tell how long they last as they are only on the
market a few months.
For me it was a no brain'r as a $500 pump is not in my budget.