Gallons Per Hour Claims

Akari_32
  • #1
Found this on another forum, and I found really interesting! The OP said I could kid nap it, so here I am! =D

A while back Alistairw and I had a discussion via posts about filter flow rates and the GPH ratings touted by manufacturers.

We were entirely in agreement that that manufacturers outrageously inflate these claims to sell more product. As an example we talked about Aquaclear specifically the 110 and it's advertised flow rate of a whopping 500 GPH.

A friend of mine who keeps an abundance of large tanks from Fancy Goldfish to Live Rock and Saltwater has high end equipment and she's tested the flow rates of countless filters.

I had quoted her as getting a reading of 150 GPH on the Aquaclear 110 but I was mistaken.

During a recent conversation the flow rate she recalled was 52 GPH - and that was without any media - so 10% of the advertised claim.

But this news shouldn't come as a surprise.

If you consider the size of the pump on an eheim Pro 1200 XL this monster filter is made for tanks up to 320 gallons and has an adjustable flow rate up too 450 GPH - 50 gallons less than that tiny, fit in the palm of your hand little pump that runs the Aquaclear.

The Diatom XL with it's lawnmower style top mounted pump capable of cleaning and polishing the water in multiple tanks has a GPH up too 400. Anyone who has ever owned any of these large canister filters or lifted off the pump knows just how solid and heavy they are.

The question remains why do companies get away with making such outrageous claims? The answer is simple - because they can.

Advertising and marketing is a slippery slope, it's been my career for decades and I've had my eyes opened more than once. I can tell you that an average bottle of perfume or cologne has a manufacturing price point of under $2.00 and all of it with the exception of a few pennies goes into packaging - because that's what sells.

The cost of the contents in the bottle is insignificant. (with very few exceptions)

This same scenario plays out in just about everything we buy. It's all about commerce and making a profit - and that's fine when we're talking about inanimate objects. But it isn't fine when we're talking about living beings like the fish that we love and nurture.

Anyone who's read my post on commercial Dog food - knows how much I despise it. Out of thousands of brands there are 14 considered safe and healthy for your dog But at least commercial pet food has someone to answer too and the consumer someone to get the facts from and or file a complaint with and that's AAFCO (Association of American Feed Control Officials)

When it comes to aquaria - we're on our own.

Not only isn't there a single regulatory agency or organization that manufacturers must comply with. Nor is there a single organization to protect the consumer.

Research is sparse to say the least.

According to the APPA (American pet products association) 11.9 million households have a freshwater aquarium. Roughly half are estimated to own two or more aquariums. So it would be fair to say the number of fish tanks in American households would be over 20 million.

Considering the cost of setting up and maintaining a single tank for say, one year - it's easy to see how Aquatic Pet Supply has become a multI Billion dollar industry.

Most of the electrical components are considered appliances. Yet very few are even UL listed.
And none to my knowledge are energy efficient certified - so much for the credibility on wattage and cost of use.

As far as flow rates you need a professional flow rate meter to get an accurate reading.

The little plastic flow meters you can buy for $30-$50 which are either plumbed in or connected between your out take hose are notoriously inaccurate and limited to what is little more than a guess at GPH up to a limit of 250 GPH at most.

Air bubbles and particulate matter even those that can't be seen with the naked eye will distort any readings from these types of devices.

I've often thought of buying one but glad I didn't. Especially now that I've made a few calls and done a bit of research and finally understand just how a flow rate is calculated.

A good flow rate meter will have transducers that attach to the output pipe or tubing. These transducers send sound waves through the flowing water and back to the meter. The meter converts the speed the sound waves travel through flowing water into data that gives you your GPH.

The cost of these instruments is prohibitive to say the least. The Innova-Sonic 205I by Seirra Instruments sells for $5,198 and they told me it was their most popular unit.

If you're not in the business of testing flow rates this proably wouldn't be a good investment. But if you just happen to have that kind of change laying around to play with please buy on and let me borrow it.

The only answer I see for ensuring the quality of products from the food we feed our goldfish to the filters that clean their water is regulation - and therein lays the rub.

Companies that want their claims substantiated have much to gain from regulation. For example that stamp of approval from the FDA gives us, the consumer a sense of confidence and it helps to sell more product.

When we buy food we like to know what we buy has the stamp of approval from the USDA.

Companies who've built their business on misinformation and outright lies want no part of regulation. Because that would expose every false claim and lie. Or they would be forced into spending money upgrading the quality of their products to meet their claims - and that's probably what they fear most.

So what to do?

I think it's what most of us do already. Listen to others who we trust, research and research more and finally make the best choices we can using the information we have available.

Goldfish are mysterious and complex, there are no iron clad rules a mere handful of experts - and an overwhelming number of self proclaimed experts.

Goldfish lovers differ on every issue you can think of from how many fish to a tank, to PH, to using aquarium salt, to treating illness. You pick an issue and without question you'll find two opposing camps - guaranteed.

And I think that's a good thing. It lets us - as hobbyists cherry pick the information that makes sense to us. In doing so we find out what works best for both ourselves and the fish we love.





I'd love to hear you're all's thoughts on this! =D
 
Jaysee
  • #2
We all know that volume of media is what's important - that can't be fudged Filters with higher GPH claims generally hold more media, which is always a good thing. But the bottom line is this - 0 ppm is 0 ppm. If you have good water parameters and you're happy with the results, that's all that matters.
 
Wendy Lubianetsky
  • #3
You know I always have wondered if the flow rates were accurate. I guess you never really know. I guess Jaysee is right, it is the 0 ammonia and the 0 nitrite that really matters.
 
Akari_32
  • Thread Starter
  • #4
We all know that volume of media is what's important - that can't be fudged Filters with higher GPH claims generally hold more media, which is always a good thing. But the bottom line is this - 0 ppm is 0 ppm. If you have good water parameters and you're happy with the results, that's all that matters.

Figures you'd the first to post here

I just thought the whole 'false claims' thing was interesting. If that's really true, then it just goes to show how important it actually is to get the proper sized filter, that says it does 10x's the amount of what ever your tank size is, because you never really know if they're going to be pulling your change, and it really only does like 5 or 6x's.
 
STLBluesFan
  • #5
if that is true it would be very interesting.
 
kinezumi89
  • #6
The "false claims" thing is really common everywhere. From cereals and soups claiming to lower your blood pressure to bagels claiming to be "blueberry bagels" (which they rarely actually are), those sorts of claims aren't regulated by any organization, so Cheerios is free to say their cereal lowers your blood pressure, when there isn't any research proving it has.

My boyfriend is actually taking a class called "Fluid Mechanics," I should ask his opinion. However, I think Jaysee hit the nail on the head; if your water is of good quality then that's all that matters.
 
Akari_32
  • Thread Starter
  • #7
You should ask him, that'd be neat to have "professionals" () opinion.

So, umm... What is in blueberry bagels, if its not actually blueberries??
 
Jaysee
  • #8
If the AC110 only does 50 gph, then that means that the smaller units do significantly less than that??? since the motors are significantly smaller. I don't buy it. I think the slam against the motor size is bogus too. That's a big motor - on par with the size of the motors of the canisters I use.
 
Akari_32
  • Thread Starter
  • #9
If the AC110 only does 50 gph, then that means that the smaller units do significantly less than that??? since the motors are significantly smaller. I don't buy it. I think the slam against the motor size is bogus too. That's a big motor - on par with the size of the motors of the canisters I use.

And this is why I wanted to post this here =3

I don't really have an opinion on this matter, other than knowing that companies make stuff up and exaggerate all the time. I'm just curious to see what you all think.
 
Echostatic
  • #10
False claims abound everywhere. From aquatics to reptiles to alternative health products. It can get pretty crazy.
 
Lexi03
  • #11
I work for a company that makes electric motors, abigger motor doesn't always mean more power.
 
Akari_32
  • Thread Starter
  • #12
I'm not sure if posting links to other sites is kosher, but here goes:



If you scroll down a bit, one of them is about blueberries. Basically it's a glob of stuff. You can tell too, I got "on-sale" bagels, and the "blueberries" were crumbly! Totally not the right texture at all. Then I got brand-name bagels, and they're clearly juicy, like a blueberry should be.

Edit: It's actually the first one on the second page. Also, I think I'm supposed to include some sort of "Danger: inappropriate language ahead" warning, so here it is Nothing terrible, just an expletive here and there.

I'd take that link down, simply because Cracked.com uses "bad words." I've got it opened in another tab, though, so I'll take a look lol I like them, though, but they aren't FishLore friendly.

I work for a company that makes electric motors, abigger motor doesn't always mean more power.

Certainly not.
 
Jaysee
  • #13
That's true. All things being equal though, bigger generally means more power, right?

The size and number of fins on the impeller have a lot to do with it too.
 
Akari_32
  • Thread Starter
  • #14
...
The size and number of fins on the impeller have a lot to do with it too.

I've been wondering the differences between impellers since my Eclipse System 3 filter went all wonky and didn't work until it took a 10 hour car trip. But now that you say that, I suppose that does makes sense.
 
kinezumi89
  • #15
I'd take that link down, simply because Cracked.com uses "bad words." I've got it opened in another tab, though, so I'll take a look lol I like them, though, but they aren't FishLore friendly.

Oops All gone. I love that website too, I can get lost for hours on it. So much good information.

But anyway, a bit off-topic; my apologies.
 
Jaysee
  • #16
I'd take that link down, simply because Cracked.com uses "bad words." I've got it opened in another tab, though, so I'll take a look lol I like them, though, but they aren't FishLore friendly.

Maybe you could do the same
 
Lexi03
  • #17
Also has to do with the grade of steel the inside componets are made of. To a extent bigger should be more powerful, but evrything is being made smaller and more effiecent, including electric motors.( I should add that none of the motors my company makes go into fish tank filters to my knowledge, that would be wayyyy overkill, and verrrrry expensive)
 
Akari_32
  • Thread Starter
  • #18
kinezumi89
  • #19
Oh jeez, what have I done...
 
Akari_32
  • Thread Starter
  • #20
Jaysee
  • #21
Akari_32
  • Thread Starter
  • #22
Jaysee
  • #23
Akari_32
  • Thread Starter
  • #24
ploopy
  • #25
It wouldnt suprise me at all.I guess like Jaysee said 0,0,is all you want.Very interesting though.
 
kinezumi89
  • #26
So, random thought. Why do you need a fancy piece of equipment to test GPH? Get a big bucket, redirect the flow from the filter to the bucket. Time how long it takes to fill one gallon, do some math, and you're done! Do a few trials to make sure you're accurate, but definitely not difficult.
 
Akari_32
  • Thread Starter
  • #27
So, random thought. Why do you need a fancy piece of equipment to test GPH? Get a big bucket, redirect the flow from the filter to the bucket. Time how long it takes to fill one gallon, do some math, and you're done! Do a few trials to make sure you're accurate, but definitely not difficult.

Because some people like to make things complicated and more expensive then they need to...?
 
Jaysee
  • #28
So, random thought. Why do you need a fancy piece of equipment to test GPH? Get a big bucket, redirect the flow from the filter to the bucket. Time how long it takes to fill one gallon, do some math, and you're done! Do a few trials to make sure you're accurate, but definitely not difficult.

Exactly. I was thinking of a way to do that It's easy to do with canisters.
 
Akari_32
  • Thread Starter
  • #29
I would think it would involve a couple buckets and a pump.
 
Akari_32
  • Thread Starter
  • #30
If you click on the link I posted under the quote in the first post, and go down to post 16, some came up with a pretty smart and easy way to calculate the flow of your filter!

They collected the water that came out of it for 5 seconds, and then just calculated that up to however much it would have equaled if they did for an hour. Tempted to try this, if I have a container big enough <.<
 
Jaysee
  • #31
If you click on the link I posted under the quote in the first post, and go down to post 16, some came up with a pretty smart and easy way to calculate the flow of your filter!

They collected the water that came out of it for 5 seconds, and then just calculated that up to however much it would have equaled if they did for an hour. Tempted to try this, if I have a container big enough <.<

The smaller the sample size, the more inaccurate the results
 
Akari_32
  • Thread Starter
  • #32
The smaller the sample size, the more inaccurate the results

Well *I* know that lol

Some one also suggested two buckets, and tubing from the intake into one of the buckets, full of water, and the filter sitting on another bucket. But I feel like the longer trip through the tube would fudge the results as well...
 

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