main return pump

[mrcopitr]

Hi,

I currently use a little giant 4 as a return pump on my reef. I would like to know, if and how often should it be taken apart for cleaning? (i.e. calcium buildup on shaft).

I use kalk and 2 part ESv additive, and it does from time to time build up on my power head shaft, and they have to be cleaned up to operate properly.

Tks..I appreciate your input

Marco