Those are not Wood blocks.. They are Fluval 404 Foam pads.

I just redid all the seals again with 2 coats of glue. and re siliconed the pump seals.

If i look in the sump, i can see micro bubbles in the 3rd chamber, goin into the pump

What kind of over flow do you have? can you take a picture of it?

i could... Its a reef ready tank.. does that help?

http://canreef.com/vbulletin/showthread.php?t=34446

theres a bunch of pics of the tank

Did you try filling the sump a bit more

Ya, its to the point where if i shut the pump off, the sump fills to about 1/2 an inch from the top.

I'd still take 'em out. JMO.

Your return pump might be sucking a little air hence the micro bubbles.

Well, if i take them out, then whats to stop the "****" that falls down the overflow, into the sump, from going back into the main tank? The filterfloss does a ****ty job at stopping stuff.

im pretty sure there is air getting sucked into the pump. as i can see the micro bubbles in the sump. im pretty sure its not the pump lines, as i gobbed a ton of weldon 705 all over them yesterday.

Right now, i have the pump BARLEY running. the 2 valves are just opened by about 1/8th of a turn, and some of the micro has disipated, but there is still some in there.

The water level in your sump should be higher. it should be high enough to elliminate the water fall. As as high as that second baffle. This will also help with the micro bubbles. Is there a baffle behind the stand brace?

J