Internal vs External overflows, I understand (I think) most of the pros and cons. I’m leaning towards internal.
Internal overflows I notice have different amount of holes drilled for bulkheads. Some have 2,3, 4 maybe even 5.
1-3 drilled holes for bulkheads are for drainage to sump.
1-2 drilled holes for bulkheads are for return lines that can be single or split (for single or dual pump).
Am I good so far.
I notice some tanks (with internal overflow) have return line bulkheads drilled into back on tank (far left and right side).
Am I correct (in what I am seeing)? Does this have an particular benefit (better flow)?
Was this just because people drilled additional holes to an existing tank (than only had 2-3 holes in internal overflow and they wanted to do Herbie or bean / animal style plumbing)?
Just curious, and I am looking into having a custom sized tank made. I can pick the overflow style, drilled holes amount, size and location.
Any options and advise is appreciated!
Internal overflows I notice have different amount of holes drilled for bulkheads. Some have 2,3, 4 maybe even 5.
1-3 drilled holes for bulkheads are for drainage to sump.
1-2 drilled holes for bulkheads are for return lines that can be single or split (for single or dual pump).
Am I good so far.
I notice some tanks (with internal overflow) have return line bulkheads drilled into back on tank (far left and right side).
Am I correct (in what I am seeing)? Does this have an particular benefit (better flow)?
Was this just because people drilled additional holes to an existing tank (than only had 2-3 holes in internal overflow and they wanted to do Herbie or bean / animal style plumbing)?
Just curious, and I am looking into having a custom sized tank made. I can pick the overflow style, drilled holes amount, size and location.
Any options and advise is appreciated!