Which to get Vortech pump MP20 or Tunze ?

[Delphinus]

I ran the Maxijet upgrades on a wavemaker and the flow and wave effects were great, but the problem I found was that everytime the powerhead would start up, it would have a tiny little shake to it. This eventually distressed the little holder arm thingy that attaches to the part that sits on the magnet and it breaks in two. I tried epoxy resin, superglue, acrylic, a little titanium shim on the inside of the arm to try to repair but nothing held longer than a day. You basically have to get a whole new kit. It's not like they're expensive but it's annoying to replace the WHOLE thing every couple of months. I went though 3 of them before giving up on the idea.