Overflow dimensions

[WuHT]

Wow thanks for the quick and helpful advise.


The only reason im' not having dual corner overflows is that my stand does not exactly allow me to run piping across (the wood partitioning are load bearing , and i'm not sure if i want to bore holes through them

However i'm curious about how removing the teeth actually increases surface skimming (would make sense for the same linear length) -- >so what do you guys use to prevent snails and other things from going over the surface that you don't want to : ie can anyone link me to gutterguard'd or eggcrate'd teethless overflows ?

Unfortunately, I'm probably restricted to one overflow , so for 150 gallon aquariums it's advisable for a 1.25" bulkhead/drain pipe and go for a 1 inch return/bulkhead ... or go for the slightly smaller combo of 1" bulkhead/drain and 3/4" return/bulkhead

[Doug]

Originally Posted by WuHT

Wow thanks for the quick and helpful advise.


The only reason im' not having dual corner overflows is that my stand does not exactly allow me to run piping across (the wood partitioning are load bearing , and i'm not sure if i want to bore holes through them

However i'm curious about how removing the teeth actually increases surface skimming (would make sense for the same linear length) -- >so what do you guys use to prevent snails and other things from going over the surface that you don't want to : ie can anyone link me to gutterguard'd or eggcrate'd teethless overflows ?

Unfortunately, I'm probably restricted to one overflow , so for 150 gallon aquariums it's advisable for a 1.25" bulkhead/drain pipe and go for a 1 inch return/bulkhead ... or go for the slightly smaller combo of 1" bulkhead/drain and 3/4" return/bulkhead

Hope my last post was not to hard to read. The quote never worked proper for some reason. A single is fine then. You could use the sq. one as I mentioned or the angled corner type someone else mentioned. I have pics of both types if you wish to see them. My preference still would be whatever size hole it takes for a 1.5in drain but if not possible then a 1.25in. drain.

[mark]

WuHT not to turn your post into a how much flow to my sump thread but you mentioned 600gph. If that's what you want, then your on the edge of seems accepted a 1" inch bulkhead will gravity flow.

Before can say more, what type of tank you planning, what type of turn over and how much you planning on relying on your return pump for display turn over? One leaning is flow no more to the sump that the gph rating of the skimmer, I at one time had 2000gph going through my sump (since reduced to 1000gph).

Me, I'm on the side of go big. Just because you have a big hole doesn't mean you have to max it, but does allow for flexibility as plans change. Applies to return bulkheads as well as drains, Realize overkill but I have 2-2" drains on a 145g.