Question on baffle-less stock tank sump

[sunil6784]

I am planning a build with a basement sump utilizing a 100g Rubbermaid stock tank. This will be my first tank using a sump like this, and the first time using an external pump.

The display will have a Herbie overflow, with one emergency drain. In my previous tanks, I always made sure the display could handle the volume of water in return section of f the sump in case of a drain restriction. With a baffle-less stock tank, I don't know how that is possible, unless I drill the stock tank high(er) so the external return pump's intake is pulling from the top of the sump, rather than the bottom. Or, create a standpipe in the sump so I can adjust where the pump is pulling from.

Am I correct in my thinking ?

 

[Eagle_Steve]

I am planning a build with a basement sump utilizing a 100g Rubbermaid stock tank. This will be my first tank using a sump like this, and the first time using an external pump.

The display will have a Herbie overflow, with one emergency drain. In my previous tanks, I always made sure the display could handle the volume of water in return section of f the sump in case of a drain restriction. With a baffle-less stock tank, I don't know how that is possible, unless I drill the stock tank high(er) so the external return pump's intake is pulling from the top of the sump, rather than the bottom. Or, create a standpipe in the sump so I can adjust where the pump is pulling from.

Am I correct in my thinking ?

You are correct, you would have to drill the tub higher if you want to account for that. I have a similar setup, but using an internal pump. Due to this, I just have my pump set up on egg rate so that is sits high enough, but not suck air.