I have been using a Reef-Filler for about 2 years...trouble free. Here's a link to my review of that pump
http://cereal.mv.com/reef and click on the ARTICLES link, you'll find it there.
It is noisy, but I keep mine in a laundry room about 50' from my tank. The Reef-Filler is a necessity if you need to pump up or long distances as it will pump I believe at up to 200feet.
Also, if you are going to pump kalkwasser for a distance, I think the 3/8" tubing the Reef-Filler uses will work better than the airline tubing that the Litermeter uses.