Noisy impeller?

[Adam]

Don't replace, repair.  I emailed Hagen, and the solution they gave to me was to put it in either CLR or white vinegar to get rid of mineral deposits and get it running smoothly.  I haven't tested it, but it seems like the theory works.

Adam

[fishycanuck]

Seems to  me, the base of the impeller has some sort of lubricant on it - or is it just fish slime? Would you have to cover the base, or re-lubricate it somehow?

[adam_ottawa]

I don't know if I would want to use CLR on an impeller.  The packaging for CLR displays a big corrosive symbol.  That can't be good for the fish; although, apparently it's alright for coffee pots and faucet screens. 

[bitterman]

Plain old vinager will do the same thing as CLR only at a slower rate. Alot of people say it is fish safe (needs to be rinced will after using, as does CLR).

There was a post a while ago about using a small amount of vasoline on the impeller shaft to quiet things down.

Bruce

[kennyman]

I wish it was that easy. I have to replace impellers in my hob's due to the metal shaft they rotate on wearing causing the impeller to rattle. I wish I could get the shafts but instead I am forced to buy a whole new impeller assembly for apx 1/2 the value of the entire filter each time it happens 

[fishycanuck]

Kennyman, that's what I was faced with. In the end, I bought a good used one at auction.
Sux.