Advice on overflows. WTB

Sean, Drilled or over the back. If drilled check out glassholes.com if over the back go with CPR Overflows.

 

I suggest the U-tube style of overflow as you don't have to worry about a pump to keep your siphon. I found a seller on ebay who has good prices on overflows.
http://stores.ebay.com/SALT-SOLUTIONS?_rdc=1

 

Have to disagree with you vikubz, that is why I recommended the CPR because of the aqualifter pump. The aqualifter does start the siphon but you don't worry about it holding your siphon, you worry about it plugging so it doesn't remove air bubbles from the siphon tube. If the pump stops your siphon is fine it is designed not to suck air sp if the electricity goes out and back on you are fine. Without the pump, tube bubbles collect and slowly diminish GPH until it stops and floods the tank. The pump is actually an extra peice of mind, but yes if you don't keep the pump clean the siphon can fill with air and stop just like a U-Tube.

 

Drilling is always better, virtually no chance of overflow. I may have a CPR90 (600gph) downstairs if you want it though, $50. I may have sold it last spring though I forget. Can't you drill the tank you have??

 

Look for stickers on the tanks. Normally All glass will just be tempered on the bottom (as are most tanks) so the sides are good to go. Drilling is pretty easy if you are patient.

 

Posted By jtesdall on 10/07/2010 08:55 AM

Posted By vikubz on 10/07/2010 07:59 AM
I suggest the U-tube style of overflow as you don't have to worry about a pump to keep your siphon. I found a seller on ebay who has good prices on overflows.
http://stores.ebay.com/SALT-SOLUTIONS?_rdc=1
Have to disagree with you vikubz, that is why I recommended the CPR because of the aqualifter pump. The aqualifter does start the siphon but you don't worry about it holding your siphon, you worry about it plugging so it doesn't remove air bubbles from the siphon tube. If the pump stops your siphon is fine it is designed not to suck air sp if the electricity goes out and back on you are fine. Without the pump, tube bubbles collect and slowly diminish GPH until it stops and floods the tank. The pump is actually an extra peice of mind, but yes if you don't keep the pump clean the siphon can fill with air and stop just like a U-Tube.
I had my U-tube fail on me one time in 2 years when I forgot to fill my sump. The pump sucked up a bunch of air and it got cought in the tube. Its at max GPH so it dosn"t collect (most the time). Also being clear they grow coralline algae vary well so that will slow the flow over time. I had the CPR years ago. Take jtesdalls advice and get the aqualifter pump or you will have problems (i did with out one). When it comes down to it I wish I had drilled it. 
 -Josh