Filter Foam PPM?

[wcgunns]

Hello All
I'm trying to design my 75gallon sump and I'm thinking of having two chambers of the sump in foam. I'm was thinking one of the first and last chambers. I'm wondering if this is a good idea for water polishing and what PPM foam do you recommend. The supplier that I found has foam in 10,20,30,and 45 PPM.

 

[boldtogether]

Usually it is Pores Per Inch....and the higher the number the finer the filtering. ..
I run, in order, 10, 20, 30-ppi then 300micron, 200micron and 100micron filter socks. The coarse should be followed by finer and finer media until the desired polishing is achieved. Don't underestimate the bio-media for filtering as well and the more mechanical filtration the less visible particulate matter there will be. To clear the water and "brighten" it up a final carbon filtration can be used but I use a UV sterilizer as carbon has never been a favorite of mine.

 

[Ihsnshaik]

Hello All
I'm trying to design my 75gallon sump and I'm thinking of having two chambers of the sump in foam. I'm was thinking one of the first and last chambers. I'm wondering if this is a good idea for water polishing and what PPM foam do you recommend. The supplier that I found has foam in 10,20,30,and 45 PPM.

I used two fine sponges but when I started to use filter floss it made a huge difference but does get clogged easily

 

[wcgunns]

Yes. PPI not PPM. When you say two fine sponges what PPI are you talking about?

 

[Ihsnshaik]

Yes. PPI not PPM. When you say two fine sponges what PPI are you talking about?

I honestly don't remember Its been 6 years. I rinse it every month or so but a pre filter is needed for best waste removal.

 

[boldtogether]

Yes. PPI not PPM. When you say two fine sponges what PPI are you talking about?

30ppi is considered fine and honestly any finer is really difficult to clean especially if it is more than say 2"...

 

[DN328]

This is a good topic. It's not always the most exciting topic but something that I've thought about and have tweaked since my sump has been up for over a year now.

I recently added a 2" deep foam block post my socks and before the biofilter chamber. I dont recall the PPI, but I would guess 30. This replaced foam with larger holes. At first I was concerned that it slowed down the flow to the bio, but it does a better job helping mechanical.

After bio, I have a final tray where I use two of the "blue pads" with a felt sheet sandwiched in between for final polish before return pump.

I'm always tinkering with foam and pads but satisfied with what I got so far.

 

[wcgunns]

DN328
Your design is what I've been thinking about trying. Thanks all for your input

 

[boldtogether]

This is a good topic. It's not always the most exciting topic but something that I've thought about and have tweaked since my sump has been up for over a year now.


I have even played with putting foam down into the filter socks....as kind of a pre-post-filter...hahah!! It really works....just kind if a pain to get out of the sock to clean....

I recently added a 2" deep foam block post my socks and before the biofilter chamber. I dont recall the PPI, but I would guess 30. This replaced foam with larger holes. At first I was concerned that it slowed down the flow to the bio, but it does a better job helping mechanical.

After bio, I have a final tray where I use two of the "blue pads" with a felt sheet sandwiched in between for final polish before return pump.

I'm always tinkering with foam and pads but satisfied with what I got so far.

 

[boldtogether]

I have played with even putting foam in my filter socks and it has extented the cleaning requirements considerably.