I have been looking for a tank and keep running across great deals on regular tanks without overflows. I'm looking at 90-125 gallons. Take a look at this idea and tell me what you think...the two red siphons would be the primary siphons. in the event on or both of these failed the two pink ones (which would normally be setting out of the water but primed) would kick in and take over when the water got that high. All this would sit on one end of the tank spanning the width behind a petition wall slightly taller than the secondary overflows. To me it just seem like an added margin of safety. What would be the pros and cons of this system. These are super sucking siphons like in the DIY section. I already run one in my 46.
OK, it would actually be one short end I drilled. Gonna be visible from the front, back and one end. So I take it the ends are almost never tempered on big ones.?
I like that "most of the time"...lol....I think I'm gonna try that. if it busts, I'll make a frag tank, or just replace that end.
I will never set up another system that is not drilled. I just don't want the headaches of the overflow, even with how failsafe you think it may be. It's just a matter of time till you have a "water event" as I like to call them.
LOL...well I have decided to find a non drilled tank and drill it and do a calfo. Seems you can get a non drilled for about a third the price and then spend fifty dollars for a glass bit and some glass and silicone and pvc is cheap. Probably half that if you shopped around. Does anyone have a glass bit to drill a hole? I think they are only good for a few holes aren't they?
Check with Blake (beanhead). He can tell you what size bit to get for the bulkhead you choose to use, and has a place to order from.
Well, what do you think on a 90-120 or so?......1"? That sound about normal? I'm not really sure, never had a drilled tank.
Hey I am also thinking of doing some drilling. I am getting a 120 in a couple of weeks for yellow head eel. Calflo wood be nice as long as I could eel proof it (escape). I have not ever drilled a tank. May hit some of you guys up for some help.
Just get some of the little screen things that go on the bulkheads. Even if he gets in the box as long as he doesn't go through into the sump that would be ok.
If doing a horizontal (calfo style) overflow on the end of a 120 I would put three 1" bulkheads in for the drains. On a 90, if it is standard (48"L x 18"w x 25"H) I think you could only get two 1" bulkheads side by side comfortably.
