Algae Scrubber Basics

You could do something like this under there. The screens are 7' x 10".This uses 9 CFL bulbs. probably 60 watters would do. The pipes are rendered at 1.5" diameter but could be made whatever you needed for flow. You can keep adding segments as well. Hope this helps.

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You could put it to the side and use a small pump to return water to your tank; build it next to your sump and design so that if it overflows (eg the pump quits) that there is an overflow path into your sump. Using an external pump with a valve would allow servicing without draining should the pump die on you...

My problem is that I didn't leave any room in my stand and if I do a build, I will have to shoehorn it in, possible with a pump as I describe above.
 
I have a lot of turf algae in the DT.
What my thought is, let the scrubber get up to speed so to say. Then give the DT a good cleaning manually scrubbing the algae from my DT. I figure that is a sure fire way to transfer the algae into the scrubber so to say.
 
Aaron, that is an awesome design. If i can incorporate this somehow (with mods to the design), I should be able to use (6) 42 watt bulbs. I may make two boxes for each screen, one box to go around the whole design, then cover that surrounding box in mylar. You think this might work?

Only thing I am bummed about with this design is the non use of t5ho. But I suppose i could do this now and try a new design later.

Cats are not a problem they help me with my water changes. lol.
 
Oh second thought, I dont like the electricity usage. I would like to keep this below 175watts (I know needy needy). But you did spark an idea in my mind.

I will make an acrylic box to sit on top of my sump lengh wise, have the box drop into my sump maybe 5 inches and use 6 24watt t6ho's. I will make a bracket for the t5's to keep them form falling into the watter. All i should have to do at this point is lower my max watter level maybe 3 inches.

Do you see any flaws in this?
 
ok guys ran into a problem with my cichlid build. I got the materials to build today and started measuring. I didnt measure before and realized I only have 7 inches between the bottom of my stand and my sump (dow. should smack myself for not realizing this sooner).

I have a acrylic 140gal (I think? 72"L X 30"T X 15"D), and a 40gal sump. My return pump is a waterblaster hy-5000 with a head height of 57".

I can, but would rather not put the ats above the tank. If I go by the "rules" for a horizontal, I still don't have enough room in my sump. I would like to keep this scrubber as quiet as possible because it is not in my house.

Any input would be extremely appreciated.

Try a 45* angle. Treat it as a go-between of vertical and horizontal-make it as big as you can! :rollface:
 
I have a lot of turf algae in the DT.
What my thought is, let the scrubber get up to speed so to say. Then give the DT a good cleaning manually scrubbing the algae from my DT. I figure that is a sure fire way to transfer the algae into the scrubber so to say.

I agree, please let us know!
 
Try a 45* angle. Treat it as a go-between of vertical and horizontal-make it as big as you can! :rollface:

Can't be done, a scrubber even at a 45* angle is considered a horizontal scrubber. Reason being that water will not flow down the underside, making it single sided scrubber. Effectively making it double the size as well...
 
Oh second thought, I dont like the electricity usage. I would like to keep this below 175watts (I know needy needy). But you did spark an idea in my mind.

I will make an acrylic box to sit on top of my sump lengh wise, have the box drop into my sump maybe 5 inches and use 6 24watt t6ho's. I will make a bracket for the t5's to keep them form falling into the watter. All i should have to do at this point is lower my max watter level maybe 3 inches.

Do you see any flaws in this?

I worry about having to drop the water level. The sump will take in a surprising amount of water when there is a power failure. I'd hate to see your electricals underwater when the sump took all that water in. Then when the power kicked back on. BOOM! Just be sure you check everything first.
 
I worry about having to drop the water level. The sump will take in a surprising amount of water when there is a power failure. I'd hate to see your electricals underwater when the sump took all that water in. Then when the power kicked back on. BOOM! Just be sure you check everything first.

When the power turns off the watter level rises 1.5 inches
 
importspeedman,

How big is your overflow box? You could put a screen in the box where the water overflows for a one sided screen to start with.
 
check this out. 68watt cfl i found at home depot. The reflector next to it is a 8.5inch. Oh don't buy this combo the light doesn't fit in the reflector
 

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Alright Srusso, and Floyd, I have a question that I can't find an answer for.

The NOISE is killing me. I have a 10 gallon as depicted in the many pictures of my Scrubber. I am feeding this with a MJ 1200. The screen size is 3"x5" so I'm over sized with that.

So to quiet this down, I have a couple thoughts. First and easiest is to reduce the size of the pump supplying the scrubber. I have an MJ 400 that would do nicely.

Another thought would require a complete re-design. It would require raising the water level in the scrubbing chamber up so that there was no falling water sound.

Now I am hoping the first option will suffice, as it's cheap and easy. But the second option raises some questions. I know Floyd has been striving for a 3D scrubber to allow longer contact times, and avoid the die off that can occur. If I re-design so the screen was submerged fully that would approximate the 3d model that floyd is going for. So my question at long last is, does there have to be an oxygen interface with the turf algae? In other words, can the turf be completely submerged all the time, or does it need to be exposed to the air for gas exhange etc?

I'll try to draw up a schematic tonight to help describe what I'm talking about. But if you can answer those questions from the info given I'd be appreciative.

Aaron
 
The screen size is 3"x5" so I'm over sized with that.

So to quiet this down, I have a couple thoughts. First and easiest is to reduce the size of the pump supplying the scrubber. I have an MJ 400 that would do nicely.

I'm talking about. But if you can answer those questions from the info given I'd be appreciative.

Aaron

Rule of thumb on flow rate is 35 gph/ inch of screen width. So for a 3" screen you would need a pump that gives you 105 gph (at the screen, remember to calculate for head loss) So the MJ400 should be fine on teh 3" one.


5" screen would need 175 gph
 
Alright Srusso, and Floyd, I have a question that I can't find an answer for.

The NOISE is killing me. I have a 10 gallon as depicted in the many pictures of my Scrubber. I am feeding this with a MJ 1200. The screen size is 3"x5" so I'm over sized with that.

So to quiet this down, I have a couple thoughts. First and easiest is to reduce the size of the pump supplying the scrubber. I have an MJ 400 that would do nicely.

Another thought would require a complete re-design. It would require raising the water level in the scrubbing chamber up so that there was no falling water sound.

Now I am hoping the first option will suffice, as it's cheap and easy. But the second option raises some questions. I know Floyd has been striving for a 3D scrubber to allow longer contact times, and avoid the die off that can occur. If I re-design so the screen was submerged fully that would approximate the 3d model that floyd is going for. So my question at long last is, does there have to be an oxygen interface with the turf algae? In other words, can the turf be completely submerged all the time, or does it need to be exposed to the air for gas exhange etc?

I'll try to draw up a schematic tonight to help describe what I'm talking about. But if you can answer those questions from the info given I'd be appreciative.

Aaron


What noise are you getting, like a squirting noise? or a sloshing noise? do you have any pictures? Getting your screen to 35gph (as close to within 10gph) and as long as your slit is 1/8" wide, you shouldnt have much of an issue. A couple times a week i have to clean the screen right next to the slit because algae grows up there causing waterfalls. But as soon as i can get some freetime to get that taken care of i wont have to worry about it.
 
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