can someone give me advice on setting up a herbie overflow

[mike31154]

Originally Posted by megs_clark

Hi, Thanks for all the great advice, im just trying to track down a local drill bit (trying to get around waiting for the shipping) Seems easy to find 1 1/2 inch bits and 2" bits but can not find a 1 3/4 inch that i need for a one inch bulkhead. When i track one down i will be sure to use all your advice. Thanks for all the replys! Do you think i could drill with a 1 1/2 inch bit and use a diamond coated dremel to make it fit a 1" bulkhead? Or is that to risky

I've used a variable speed drill with a round grinding stone to smooth out and open the hole a little after drilling. It will work but I had a couple of small slips and put several minor scratches on the glass around the hole. No biggy since it's a sump I was drilling, but you're better off being patient and getting the proper size bit.

[megs_clark]

Ill wait, lol, was eagger to get a go on it this weekend, but ill hold off and order from that bulk reef suply.

[megs_clark]

Well yesterday the hole saws came, and this morning we drilled two holes on the back corner for the drain. We were going to drill two more holes for the return but it took a long time to drill the first two so we decided to stick with going over the top for the returns. Were pritty much going to go exactly as Marks diagram showes but will probably put in two returns? Havnt really decided. Right now im off to get some glass cut for the overflow, Getting more excited, thanks again for all the advice