I decided to pull both of my MP10wES off the back wall for a soaking and cleaning today (I have spare wet sides that I can run). They're getting pretty heavily coated in coralline so was pulling the covers off for a soaking when I discovered the following:
Wet side assembly #1:
The center portion of the basket had fused onto the shaft itself. Parts of exposed metal can be seen through the black plastic.
Wet side assembly #2. Hairline crack on the shaft itself. There seems to be rust developing along the crack as well.
I'm pretty sure that both of these weren't supposed to happen to the Vortech shafts. They're used wet side, but these weren't in operation for more than a year for something like this to happen. These issues weren't present last month since I usually pull them apart for cleaning monthly (that's about a month's worth of coralline growth that you see in the pics)
I happen to be chatting with a buddy of mine and he mentioned that a similar thing happened to a few other SoCal reefers when they pulled their pumps apart for cleaning. I took his suggestion and contacted Ecotech this morning and discussed it with the rep. I sent them the details, including the fact that these were purchased used in 2013, but wasn't put into operation until a year ago when I kickstarted this tank.
They can't replace these since they're out of warranty, but was able to offer me two new MP10wQD wet sides for the price of $75 (they covered the shipping). I'll be running the spares that I have on hand at the moment, but will be using the QD wet sides once I receive them. Needless to say, I'm pretty happy with their customer service at the moment.