overflows that you hang on the side

[henward]

over flows that you hang on the side

any one can give me info?

are hey any good

there is one on trad me, no link cos i dont wanna get told off:D

but so hff sells hang on over flow

[Warren]

You are allowed Trademe links if you are after information on something you are interested in buying. This is the only exception to the 'No Trademe Links' rule. Feel free to add the link so everyone has a better idea what you are talking about.

Sample post:

I've seen this on Trademe, 'LINK'. Are these any good because I'm interested in putting one on my tank. HFF also sells similar units - are they any good?

[henward]

http://www.trademe.co.nz/Home-living/Pe ... 426644.htm

cool

here it is

[Jammos]

hi, i have exactly one of these on my marine tank.

it is a very good starter to get it to the sump but there are a couple of problems:

when you get the plumbing device to alter the water flow to the sump it is very tempermental... ie can spend upto 5 hours fighting with it (or maybe i'm useles :-? )

and even though people say low loise it is still louder than a normal overflow (in my opinion).

so only get it if you already have the tank setup or it is not in a main living/sleeping area.

But next time i will spend the extra $60 and get a tank with a corner overflow.

hope this helps in some way :oops: :roll:

[henward]

how and who and how easy is it to put an overflow on an already existing tank?

ne that i just bought, i want an over flow. order or middle dont matter to me

[HaNs]

http://www.melevsreef.com/acrylics/overflow.html

Make this

[livingart]

we have one we made on saltwater tank

made from 32mm pvc pipe will see if i can get photo for you

cost 20 dollars from plumbers outlet

[livingart]

diagram of overflow

you need to fill bent pipe to start it

we use 32mm pipe and elbows to give good flow out

box on side can be plastic jug with handle hung on side of tank

to sump can be glued or pipe fitting

i think i have pic right size if not please let me know

[henward]

how does the water keep going down the tubes?

does it work in a normal syphon action? or will it start as the water enters the inlet?

return pump returns water to the tank and keepspushing water down into the inlet... but do you have to start a syphon action?

meaning if there is a power cut, and syphon action stops, you have to re start manually?

[livingart]

so long as you fill the bent pipe that goes into tank to start it will work automatically at start of power during power cut

the bent pipe always remains full of water as both ends are in the water

the one i run has the pipe going to sump from the hang on box at the same height as the tank water level this ensures the pipes are always full

as the sump pump starts back up it automatically flows into tube in tank and starts the process again

[livingart]

i put the return pipe from sump into the pipe to fill at the start from then on it runs automatically

[richms]

The one I saw in use was similar but there was a T in the center of the hump extending upwards for 200mm or so with a cap and a valve to suck the air out. The guy said that its so there is lots of space for the disolved air to come out before the sipon will get broken, he sucked the air out every month or so.

Also, doesnt the pipe ending at the tank surface make it suck air? the others I have seen have it stop well under the tank level.

[livingart]

doesnt suck air as it stops at the waterlevel so long as the out pipe in overflow box is same height as the tank waterlevel

i need to correct diagram

i use 32mm or bigger pipe