Plumbing for a sump?? HELP!!

Well...where do I begin?... I guess 1st a little back story... I have a 40g that I've been researching on installing an over-flow to my 20g sump. I am a little concerned about loosing siphon on my u-tubes/overflow. I am thinking about just drilling my acrylic tank.
What does this involve? Do I just lower the water level and drill away? Sounds too easy! What about bulkead size and proper flow? Then how high do I drill the holes? How can I remove the scum off the top of the water if the drain/strainer is submerged?
Should I also drill holes for the return or make the return go up and over?
HELP!!

I've stumbled on the concept of putting a SQWD on my return... I've also thought about putting a seperate closed loop system... would this be a waste?
It seems as if the more I research the more questions I have...
The best part is that I know have my wife's OK to get the sump going... Questions about the sump to follow once I figure this little dilema out!!
Thanks in advance!!
__________________
-marcelo-
 
bump
I guess here's the real questions...
1. Do I just lower the water level and drill away? Sounds too easy!
2. What about bulkead size and proper flow?
3. Then how high do I drill the holes? How can I remove the scum off the top of the water if the drain/strainer is submerged?
4. Should I also drill holes for the return or make the return go up and over?
 

coraljunky

Active Member
Do you have another container/tank to house your tank inhabitants? If not, its nice to have a spare 10g or 20g on hand. As for the holes, use a holesaw bit for plastics. I'd drill for 2 bulkheads in the lower back or the bottom. What size bulkhead-depends on your needs. IMO, no smaller than 1".
Hope this helps
 
I do have another 30g... I have a 20g but want to use that for the sump... I would rather not move my family(!!!) more than I have too...
So you recommend I drain the tank completely...sand/rock/all?
 
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