Yes that's a very nice one and I will probably do a double one for my 75 gallons tank like this one here:
http://www.aquariumadvice.com/forums...-166240-5.html
or this one which doess not have to be glued in the tank:
http://theprodigalcube.blogspot.com/...flow-pipe.html
Those are really nice double overflow and with a double one, if one part glog, then it won't be that dramatic so it is safer to use on large tank.
I built that simple one for my little nano 15 gallons so I did it in 3/4" and I have a pump that is rated 1800 gallons per hour but it is just a little bit too strong once with the head of 3", so I am going to put a ball valve and adjust the flow so it is in a safe margin.
I built mine with 3/4" CPVC and 3/4" should be around 220 gallons per hour.
What I like about those pipe overflow is that they take very little space and are not so ugly as the boxed ones that are sold. I have a black tunzee one that I don't even use as I find it too ugly and if you want the water level to be high in the tank this thing need to be so high that it is really ugly. The pipe overflow is very nice and can be hidden in a beautiful home made box and the water level adjusted very presicely.
I may try this one you posted instead and make two for my 75 gallons. I see so many nice design now.
But I was wondering if any one had a disaster hapened with these and if so then why? I know they can get glogged if a fish fall inside or plant debris etc...But I guess it is not worse then any other overflow?
Quote:
Originally Posted by nanomano
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