any ideas on how i can get some surface skimming action going? This design works really well for me because i have a fiberglass DIY background that was made around the intake of a power filter so the 1 inch pipe fits in that space almost perfectly. Again thanks for the ideas with the dump line and ball valves i will def incorporate this in if i fix the wetdry. Another thing im worried about is flooding. If the overflow fails the pump will empty the contents of the sump into the main tank causing overflow and flood. How can i prevent that?