DIY freshwater sump design/build ideas? Dec 5, 2015 8:35:46 GMT -5 Quote Select PostDeselect PostLink to PostBack to Top Post by spotfin on Dec 5, 2015 8:35:46 GMT -5 Sounds good. Make sure you can access the areas between the baffles to siphon the detritus. You might also want to wedge a sponge in between the first two baffles to collect the large pieces.