Solid, but uncreative. Tip: This concept could be fun and useful, but not as a standalone. Example: http://mekoramaforum.com/media/sewage-filthy-filter.114/
@KPACABA. You are welcome to your opinions regarding ratings, however posting a comment such as this one in a public forum, even if others agree with you, is considered to be rather rude. Please be more polite in the future, by offering constructive criticism as to why you feel a rating is incorrect. Or better yet, post your own rating and give constructive criticism as to why you rated it the way you did. ...and if you can't say anything nice, don't say anything at all.