Anyone using a DIY pipe overflow?

[mike31154]

If the main pipe clogged, even a drilled tank overflow wouldn't prevent a flood. They're subject to the same rules in a scenario like that. Just hope it never happens when you're away for any length of time. Kind of why I'm a bit ok with my current sumpless set up. Although this thread has got me thinking I might get a sump going. I've been waiting to do that with a new set up, but these ideas have me itching to give it a try.