[Chin_Lee]

thanks doug. I will go to the tunze forum on RC to make my inquiries.
My impeller is dead - while trying to remove, i've broken a few pieces. So i've drilled out the plastic center, I've cracked the magnet and ........ its still stuck. Now I cant even get the cracked magnet out.

Originally Posted by Doug

Hi Chin,

I had a similar problem with one of my 6080 streams. First, I was running higher calcium & alk. levels, which seemed to cause more calcification,{if thats a proper term}. Had to soak them every month, minimum.

I purchased them when they first came out. Tunze has long since, increased the amout of tolerance between the bushing and/or the impellar & the walls. Not exactly sure which. Anyways, I had one that would not come out, same as yours. I ended up breaking the impellar itself, trying to remove it.

I sent that pump to Rodger in Texas for removal & replacement of the impellar assembly and also ordered a new one for the other pump. These had the increased amount of space. They worked flawless since then, which is well over a year or more now.

As I dont know your pumps age, cant say if its the same or just plain calcified up. Perhaps the Tunze dealer in Montreal, {Phil}, could help or Rodger on the RC, Tunze forum. We had a thread on the problem, as well as one I had with pics of one of my impellar assemblys apart. I would need to search for them if you wanted to read them.