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Author pac6010 (13 days)
Its a good system but to me it needs actual filter media pads for
mechanical filtration that can be taken out and cleaned. That would be in
place of the small scrubbing pads. If you just want it to be a bio filter
then why not use all bio balls, they collect less crude than those sponge
pads will and keep nitrates in check better.
Over time waste does build up in those pads and will give off more nitrates
than the bacteria can handle so the filter needs to be able to be cleaned
to me.

Author Todd Cameron (7 days)
I've never had to prime the system with bacteria. Bacteria is everywhere,
if there is flowing water it will grow. Might help speed it up however I

Author Robinson Reyna (4 months)
Hi...the inlet hose from the pump first goes to the top of the filter, then
the water goes all the way down and directed to two elbows on the corners,
which creates a circular flow. Why the water has to be fed from the top?
You can drill a hole at one of the side walls and feed directly to the
T-junction. That way you will (1) save couple of elbows and (2) the total
head will be reduced by the equivalent height of the filter. Both of this
can result in increased water flow. The only reason I can think of is in
case the pump starts taking the water back, then the debris can go inside
the pump, in ideal case it wont happen. Or is there any specific reason for
feeding the water from top?

Author Renee Kirk (2 months)
Would something lie this be helpful for a duck pond? I have 6 ducks and I'm
beyond tired of the kiddie pool so decided to put in a larger pond. I would
like some kind of assistance at the very least with cleaning it from time
to time. Wondering if this could work?

Author Mike Poamoho (1 month)
mike here .. what is the process and how do u use the beneficial bacteria? 

Author Mudcat50 (1 month)
I have 2 pumps, one which runs to something similar to a skippy and another
that is inside a cat litter container with media, that is submerged in the
water. A couple of questions.
1. What would you used to distribute the outflow from the skippy filter?
It's coming out of that closet flange. How large is that? 4"? 6"? I use 1
1/4" hoses for the most part.
2. My biggest problem is keeping my pumps free of debris. I've found I
can't just put an unprotected pump in the water, it has to be IN something,
otherwise a curious fish will get stuck on it. Any ideas?

Author klmgroupia (9 months)
Hi Julius...well this particular filter and most like it usually pump water
from the bottom upwards, then it spills out the hole near the top, which
works kind of like a waterfall bio filter, or it can I should say. That's
the only way I've used them, bottom to top.

Author klmsolutions (2 years)
@enticed2zeitgeist - those are just floor scrubby pads, no additives or
anything. You could also simply cut up a standard filter pad (medium
porous) that you would normally put in a pond filter. Just cut those up
into blocks and put them loosely in the tub. I think that would work fine

Author nightstalkerrc (4 years)
@Arteolike the rubbermade stocktanks start at $70.00 for a 70 gal . you can
get an off brand 110 gal for $60.00 . @ tractor supply company floor
scrubber pads and scrubby pads perform well as media..i,m on over 2 years
non stop use on my media, its never been cleaned,and it goes from my
outdoor pond to my basement pond. you can easily build one of these for
under $250.00 U.S. buty do yourself a favor and add a flush valve to the
bottom with a 2" shower drain,2" pipe and 2" ball valve

Author klmgroupia (9 months)
Hey Dan, good going. Now just a note here...don't be shocked if you do see
green water early on. It can come and go as things get established but
after a few weeks you should see things stabilize for good. Not saying you
will see green water but you might. Also be sure to visit our blog (link
below the video) and search on skippy there. I did an update on how to care
of this filter over time and keep it working well. It's in addition to
what's in the video. All the best!

Author klmgroupia (2 years)
@SidelineHero10 hey, you're welcome. A good idea is a good idea.

Author kirkdhargrove (10 months)
Can you put a cover on it or does the top need to stay open?

Author gboss454 (1 year)
what is a nipple reducer??? I can't find one anywhere??!!

Author Dan Moore (10 months)
I was wondering about the closet flange? I was wanting to run 2 outlets to
my water features, so would they both need to be 4" in size or should i use
smaller sizes? Also i need to run one line uphill to operate my waterfall,
i probably can't operate this due to gravity ( correct)? I do more cooking
than plumbing this ought to be interesting, hope i can do it right.

Author Nelly Crowe (2 years)
I'm interested in making a filter for a small (180 gallons) pound. Any

Author enticed2zeitgeist (2 years)
@klmsolutions I get that they are just scrubby pads with out any soap added
into them and such, but it's not safe to just add "dry" plastic objects
into water is it? I know the recycle number associated with various
plastics declares it's usage. From my research it is not safe to just add
random plastic objects into water assuming that because it's plastic it's
safe. If you aren't aware of what kind of plastic those scrubby pads are
made of how can you be sure they don't leech into the water?

Author Arteolike (4 years)
No No, i understand, and everything you said is so true, for a smaller pond
DIY is best, Hey i made a DIY filter for my fit small pond!?! And for
anyone wondering were i got the filter for such a cheap price, we had a
pond store in our location closing, so i bought a filter for around 50%
($1,200.00) off, 3 weeks later i went to the store and really stocked up! I
found they had three more left at 95% off ($114.79) I took them all, there
still in the shed, in boxes!?! I bought a lot more too,

Author Arteolike (4 years)
...... And to match up to a 15,000 Gallon Advantage pressurized bead pond
filter (According to you) You would need around 3 of your 150 Gallon
filters, with will run around $800.00 And they don't work as good as the
bead filters ..... Sorry, felt like you should know. =)

Author Julius Bersola (9 months)
is it better to pump the water in from the bottom so that it will filter
better or from the top?

Author 50JumpChump (5 years)
How about for a pond that is only 200 gal.

Author Sonya Serna (1 year)
can plants be added to this filter and gravel for them to live in?

Author klmgroupia (4 years)
@Arteolike , Don't be I said, everything is relative. For
smaller ponds, and those with specific circumstances, diy isn't a bad way
to go. There are a lot of options to this thing and costs can be kept down
pretty well. I prefer bead filters myself with backwash and pressurization,
but they may not fit everybody's budget or needs. This particular design is
completely reliable and simple to put together. But I'm not trying to sell
the idea..just share the information.

Author 1065Olivia (1 year)
I always use air conditioner filters. The softer type that do not
disentegrate which you trim your self. Has worked great for years in my
4000 gallon koi pond. Home Depot carrys the type and they are generally
$8.00 and are blue.

Author enticed2zeitgeist (2 years)
What are those floor sponges made out of? Does it leech anything into the
water? I was thinking about using that sponge stuff for an aquaponic filter
but I'm concerned about leeching.

Author Alex Ross (1 year)
I have two of the 100g Skippy-style biological filters in operation for our
5,000 gallon Koi pond....and they do readily gunk up. What recommendations
do you have for mechanical filtration to prevent this?

Author Dan Moore (9 months)
Bio-filter finished & after 4 days the difference in my water is wonderful.
Thank you again for all your help. My pond is 3500 Gal.

Author klmgroupia (4 years)
Yes, the bacteria will work best if the filter is in constant use. If the
water flow is shut off for very long the bacteria will begin to die off and
will need to be replenished. I think it's a good idea to do this every
spring anyway, just to get things started off right. We use the Algae
Solution product to do this but there are many brands of bacteria on the

Author terry barrett (10 months)
very small pond 500 gal, i made a pond filter from 15 gal removeable top
blue barrel. i then cut out holes one low and 1 high on the barrel and
added round pvc flanges to the barrel, then for filters i used the round
floor scrubbing pads in 3 different sizes and pumped the water in the top
flowing toward the bottom. the barrel is actually sealed and pressurized.
really cleans up the water when their is enough bacteria. very similar to
your design process. works the same way. nicely done video!

Author qcages (5 years)
does the bacteria die if your filter is in an area with freezing winter??
and if so would you need to prime the filter every spring? really
interesting filter

Author rik680 (3 years)
@klmgroupia Filter manufactures are notorious for under rating there
filters . All of them , aquarium or pond filter makers . Buy the time you
find out you are under filtered its to late and you have to spend more
money for proper filtration . If there filter say 1500 gallon you would
have to double there filter to 3000 gal filter ,for a small fish load .

Author stevenhaas (3 years)
@invasmani - you can buy floor buffing pads at homedepo or lowes (look in
the rental area - they sell them for about 5-6 bucks a pad - I built this
unit this spring and used about 10 pads, cut them up my self .

Author indianawhitetail806 (2 years)
where do you get your sponges?

Author klmgroupia (10 months)
Usually the actual media is filter pads or traditional media you'd find
commercially. If I were going to use plants I'd probably just work on
creating a bog filter or something like that.

Author enticed2zeitgeist (2 years)
@klmsolutions Wise answer! Thank you very much man! I really appreciate you
taking the time to answer my questions. Namaste

Author klmgroupia (11 months)
Well not normally because all the inorganic stuff settles down there and
you'll eventually want to remove that. Normally I'm not sure how well
plants would do in this, if they aren't covered and get some sun, and
elevated off the bottom it might work. Usually though media is put in there
for the bacteria to grow on, and this is suspended above the bottom for the
settling I mentioned above.

Author scoobyboyuk (3 years)
Any filter that incorperates the mechanical and biological stages in one
unit is not the most efficent way of keeping good water. what you have is
the mechanical stage (the fish poo and any other waste) sitting at the
bottom of the bio section.This is the area that gets the full load of all
the waste that comes from the pond.If left unattended the bacteria willl go
anaerobic and cause massive health problems including parasite infestation
and bacterial issues.A sieve before this would be better

Author klmgroupia (9 months)
Yep, the inside stuff is what's important, the container not as much. So no
worries about the stock tank.

Author Richard Walsh (4 years)
where do you get a rubbermaid "stock" tank???

Author Noreen Howland (2 years)
another question. If I decide to build a filter like the one you suggest,
do you think there would be a problem of taking the bio-media out of my
current filter and transfering it to the new filter? Would the bacteria
survive the transfer? I dont think my current filter is adequit, but I dont
want to have to start from scratch as far as the microbes I already have

Author Mostlyfun (4 years)
You can get them at the dollar store

Author klmgroupia (10 months)
Hi Terri...on the lava rock, no, color wouldn't matter as far as I know.
Ceiling light grids, I've seen these most large home product stores, home
depot, lowes, etc. In the ceiling tile section. Maybe they've gone out of
style but for some commercial installs I still see them used...they are
usually 2'x4' in size. Any grid type structure would work though.

Author kgbean (2 years)
Oh, and I use a ton of water lettuce in the hottest part of the summer.
That always helps.

Author xrayfeeney (5 years)
No.This filter is above the pond level and outside . The outflow can feed a
waterfall if wanted.But remember the return has to be above water level and
has to be outside the pond.

Author Arteolike (4 years)
@nightstalkerrc Thanks for the heads up! =) I actually might try it. Cause
i have a pond which is around, 2,000 Gallons. Alllllll my bead filters i
sold, i never knew people liked them so much! They were gone within a day
and i sold them for like $1000.00 for the new ones and i sold the used one
for $400.00 which my cousin was using.

Author klmgroupia (2 years)
@aviewtoathrill pine needles can be a real pain as you know. A filter won't
help much on these if they end up sinking to the bottom pretty quickly.
Same with a skimmer, but if they do float for very long (some might, some
won't) then a skimmer would be a definite addition and a filter could be
good but optional. A skimmer with fairly tightly meshed catch basin would
probably help a lot. If you get a lot of this debris on the bottom then a
pond vac might be the best option.

Author klmgroupia (9 months)
Hi can use any good general pond bacteria to prime these. On our
site we suggest using the 2500 dispenser system and this comes with a 2
month supply which should get you going well. If you go to our site at Pond
Algae Solutions and search for 2500 it will come up for you and you can
read more about this particular product.

Author Mark Washburn (1 year)
Well you'll have to pay for that one:) Alll kidding aside, this is just a
bit of a primer to show what's possible. watching one of these run isn't
much better than watching paint dry because they're so simple. Sometime I
might actually go through the steps of building one and running it, but at
the moment time doesn't allow such frivolities. Thanks for asking though!

Author jonathan kidd (5 years)
Great vid. Stupid question however... This filter goes Under The Water.
correct? the pipe then skims the surface?

Author ChinaBlue1231 (4 years)
at 3:09 with the white net on top of the pvc pipe.. what goes under the
white net.and where can i get them?

Author klmgroupia (10 months)
Hi can use any size of flange you like I suspect. In terms of
running uphill, that would generally be based on your pump capability.
These filters are very basic obviously and your main task is just to get
water into them from the bottom, and as it rises, the filter pads will
capture debris, etc and the water will run out the top...which could be
either directly back into the pond or via a waterfall configuration. By
design you might also look at a bio-falls kit. Same principal.

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