Overflow!

[jedchuah]

I've seen some pictures on prefilter overflow to the sump witha a U tube connecting the inflow
to the outflow anddown to sump.
Can anyone tell me whether you need a pump to
draw the water down to the Biofilter Tower
in the sump?
Thanks
Beginner

 

[jammzoot]

To get the water flowing from the tank side to the prefilter side first add some tank water to the prefilter box, enough to cover the bottem of the u shaped tube when inserted. Insert a section of air tubing, the smaller flexable stuff, up the tail end of the u-tube to the start of the arch. Put the u-tube in place and suck the air pocket out of it, and remove the air tube. This will force the water from the tank up and over the u-tube. Once you get the water moving you can shake the u-tube around a little to get ride of any bubbles caught in it. Hope this helps.

 

[mr . salty]

A pump is neededin the sump to return the water to the tank.

 

[jedchuah]

Thanks for the reply.
Now I'm ready to experiment!

 

[broomer5]

Experiments are fun jedchuah !
With overflows and water - just be ready with some dry towels if you're trying anything too new
The laws of physics, atmospheric pressure and the nature of water are very unforgiving.
Good luck - stay dry !

 

[karvis]

you will need something to get i moving!

 

[renae]

Hi,
I have the same set-up that you guys are discussing. I have a pump and and Lifeguard filter system with mechanical and chemical filters attached. I also have the overflow and sump box. MY PROBLEM: My overflow will not stay overflowing. When I go through the process of getting it started, it keeps quitting. It ran perfect for about a month, and now everyday it is stopping on me three or four times a day. Also, my pump and filter has "spurts". One minute the water will barely be pumping and the next minute it is shooting out at a powerful pressure. Any help on these topics will be greatly appreciated!!!
Thanks,

 

[david s]

mine works good its a 1.5 inch u tube overflows work on siphon and water presure the water levl in outside box is a slight bit lower than the tank lvl so water seek a lvl and it pushes water into outside box main problem with loosin siphon is air bubles small ones will pass right thru but if u get a big one it could loose siphon i have seen setups were they connect the air tube from a powerhead to a hole in siphon tube to help against problems like this