Cleaning question

[muck]

Did you install unions on any of your piping for easy access to clean them?
Have you cleaned the return pump yet?

[belzebuth]

No I have not cleaned the return pump yet. No unions on the pipes either, this setup was already established when I purchased it. I kept the plumbing as is. Should probably have redone it...Unions sound like a great idea.

Any idea how to clean this...Or should I just redo the entire plumbing under the tank?