DIY Needle Wheel Impeller need advise

[reef999]

Hi all,

I am new here and still do not own a marine tank.

I am at the preparing stage to setup a 2ft tank which currently still using for fresh water.

I plan to use a sump tank with a overflow pipe.

But now headache on the type of skimmer to use due to my tank lower tier height is too low.

So i decided to DIY my own skimmer.

1st stage, the pump:

Here's the power head i purchased today and done some modification on the impeller using a bioball. It is a 1500l/hr power head.

I do not own a skimmer yet so i just put the modified power head into the tank.

It works but i do not know how much bubble suppose to produced for a needle wheel skimmer.

Anyone can advise the air inlet valve should insert at the outlet or inlet? (A) or (B')?

[stevenkoh08]

it should at the b side as this will allow the needle whell to dispuss the bubble to fine bubble that why needle wheel have fine bubble

[stevenkoh08]

it should at the b side as this will allow the needle whell to dispuss the bubble to fine bubble that why needle wheel have fine bubble

[reef999]

Thanks for your quick reply. But i found when i inserted the air tube from (B') got less bubble produced.

Next question is, usually less bubble produce in fresh water compare to salt water right?

[Thexder]

Thanks for your quick reply. But i found when i inserted the air tube from (B') got less bubble produced.

Next question is, usually less bubble produce in fresh water compare to salt water right?

Yes, you should test with salt water. Fresh water does not work with skimmer.

[reef999]

Yes, you should test with salt water. Fresh water does not work with skimmer.

So do you think this modification can work?

[stevenkoh08]

ya man sure try it out and see anyway if ur b part does not come with an covex shape it will also not suck in more air

[reef999]

ya man sure try it out and see anyway if ur b part does not come with an covex shape it will also not suck in more air

Can illustrate how the convex shape like? Is it like this?

[stevenkoh08]

this should able to however that is not really a covex i'm talking about

sorry for the poor drawing

untitled.bmp

[jyoon]

Nice DIY.

However there should be full range of skimmer that you can choose from. May be hang on suits you?

[reef999]

this should able to however that is not really a covex i'm talking about

sorry for the poor drawing

Thanks for ur effort to draw it out for me!!

Nice DIY.

However there should be full range of skimmer that you can choose from. May be hang on suits you?

Yes. I am so confused on types of skimmer available in market. Since I got some parts to do the DIY skimmer.

And also able suit the height of my tank rack, therefore i decided to DIY it.

Hang on type suitable for sump tank?

[Thexder]

So do you think this modification can work?

You have to test it out and see the results.