sump clean out

[steve_karen]

What is everyone doing to clean their sumps? I have some gunk building on the bottom in my Skimmer section as well as my refugium section. How do I vaccum it out?

 

[Markk96]

I use a Shop Vac, works great.

 

[Craig Lambert]

The job I hate the most! I completely empty it, and wipe it out with damp rags. Then refill it with new salt water. No point in going through the effort without coming away with a large water change as well.