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Why are skimmers to freakin' expensive?!


Mr. Microscope

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Mr. Microscope

Topic heading speaks for itself. I look at skimmers and I keep thinking over and over again, "yes, that looks like a nice piece of equipment, but $300, $400, $500?" I mean, I'm sure a lot of design work goes into it, but when all is said and done, aren't they're just simple plastic cylinders stacked up with some plumbing and a pump?

 

From a materials standpoint, I don't get it. It's not like there are 50 LEDs in there that cost $6 a piece. There has to be more to it than just aquarium hobby mark-up. Forgive my naivety, and I'm not trying to be insulting to anyone in the industry. If there are any forum members that make these, I'd praise any enlightenment you could offer.

 

Why are skimmers so expensive?

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The pump is usually the most expensive piece.

 

Most DIY ones look like ####

 

IME most 4" models are ~ $75-$300.

 

I also don't have time to fabricate my own acrylic, and crap.

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Topic heading speaks for itself. I look at skimmers and I keep thinking over and over again, "yes, that looks like a nice piece of equipment, but $300, $400, $500?" I mean, I'm sure a lot of design work goes into it, but when all is said and done, aren't they're just simple plastic cylinders stacked up with some plumbing and a pump?

 

From a materials standpoint, I don't get it. It's not like there are 50 LEDs in there that cost $6 a piece. There has to be more to it than just aquarium hobby mark-up. Forgive my naivety, and I'm not trying to be insulting to anyone in the industry. If there are any forum members that make these, I'd praise any enlightenment you could offer.

 

Why are skimmers so expensive?

 

Totally agree!!! I have always thought the same.....

Its just basically formed plastic bits in a certain shape and a pump!!!

I expect even the biggest ones only cost $30 - $40 in materials!!!

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Aquatraders makes fine skimmers the i owned the ps 75 and it kept my 55 clean no problems pulling brown stinky all the time for $39. The reason tje others cost so much is the cost of american labor.

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The pump is usually the most expensive piece.

 

Most DIY ones look like ####

 

IME most 4" models are ~ $75-$300.

 

I also don't have time to fabricate my own acrylic, and crap.

 

 

 

^ Yup. People care about looks and they're willing to pay for it. I imagine it would take quite a bit of time to come up with a usable (not to mention, presentable) DIY skimmer. ;)

 

FWIW, you don't have to run a skimmer. I ran an 8g cube with no skimmer for over a year. Just 1 par bulb, heater and an MP10.

 

 

Aquatraders? Eesh... I know it's budget friendly but would not support that operation at all.

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Mr. Microscope
Aquatraders makes fine skimmers the i owned the ps 75 and it kept my 55 clean no problems pulling brown stinky all the time for $39. The reason tje others cost so much is the cost of american labor.

Thanks for the suggestion. I'll check them out.

 

^ Yup. People care about looks and they're willing to pay for it. I imagine it would take quite a bit of time to come up with a usable (not to mention, presentable) DIY skimmer. ;)

looks...like hidden away in the stand in their sump that they only see while doing maintenance? LOL.

 

In all seriousness though, you're right. Some of them do look like real pieces of art. A DIY would probably be pretty ugly or hard to replicate.

 

Though, I'm considering building one with an airstone and bottle for my cube. Like so. Though, it'll only be like 30 gallons total. So, I could get away with something ghetto like that. I'm sure I'd want a bigger one for a bigger tank.

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Well considering the size bracket for the tank you have (I assume your sig is recent) - Most tanks in that size don't have sumps... Many are AIO and use HOB or in tank skimmers.

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Cast acrylic tubing is expensive.

Fabricating cast acrylic cones is expensive.

+ pump, specially designed impeller, gate valve.

 

As mentioned R&D.

 

After all that, they are bulky and fragile driving stocking and distribution costs up.

 

I reckon the materials cost for a decent skimmer would be higher than a LED fixture of the same price.

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All of the custom parts would be molded and the tubes would be extruded. The cost can be determined buy the shot size times acrylic price per pound at the specific bulk density plus machine time. Plastic is cheap as chips, even acrylic isn't bad.

 

We were making these running boards that used a fiber glass reinforced nylon with special strength and thermal requirements (pliable at -40'C for use in Siberia) and it was just over $10 AUS per kilogram. That being said they were four kilograms per shot so each single piece was over forty dollars in plastic alone. I assure you that clear acrylic is much less expensive then engineered nylon blends. Even when you add in the cost of machine time and UV block its much less.

 

For example the video below; all they were making was two 500g containers for dip or whatever else you need to put in plastic dip containers. The reason the mold was so expensive was that... well I'll just show you in a video.

 

 

This machine has a 3.8s cycle time (it could be faster with anticipation - that is the robot doesn't stop before reaching the mold; it assumes the mold will be open in time or it will hit the mold. That's about 15.75 cycles per minute * 60 minutes * 24 hours * 2 cavities is about 45,000 parts per day. You can buy this mold for about $100,000 USD, that's heavily discounted being that we made this mold for a show. R&D for it was about $200,000.

 

Because of the automation and the efficiency of all electric molding machines such as the one in the video the machine time would be fairly inexpensive maybe like $150 to $200 an hour.

 

If you look at this hydraulic molding machine which does 2500 tonnes clamping pressure and runs four 100HP motors; its machine time is about $400 per hour.

 

post-67912-1329528240_thumb.jpg

post-67912-1329528347_thumb.jpg

(To give you an idea of scale that platen is about seven feet tall)

 

 

 

TL;DR - The initial R&D Cost is the reason why they are expensive initially, then you add the markup for the company name and for the 'specialized' aquarium industry, manpower(usually rolled into machine time), logistics of shipping, etc., that's where it adds up. The cheapest part is the manufacturing itself.

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Everything in our hobby is expensive. Think about it, all of the little plastic parts that cost pennies to produce and cost 10 bucks at the store. Our food products are about 40 % more than fresh water products as well. We are in a specialized hobby and even though there are a lot of us out there we are the few the proud compared to other aquatic hobbies.

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Decent protein skimmer bodies are made from cell cast not extruded tubing.

 

Cone shaped bodies are made from cast acrylic sheet which is bent into a cone shape and welded.

 

Bubble plates are CNC machined.

 

The major parts of protein skimmers are not injection molded.

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Aquatraders makes fine skimmers the i owned the ps 75 and it kept my 55 clean no problems pulling brown stinky all the time for $39. The reason tje others cost so much is the cost of american labor.

 

untrue..if you look closely, most of the crap is made in China anyway, so where is the labor?..

 

you want cheap skimmer..get skimz

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You're paying for the name as well as the quality of their parts used that's not acrylic like the pump.

 

I didn't know Sicce pumps in my skimmer are expensive.

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That is why it is always nice to have a friend who is really good with acrylic :)

 

I use to wonder this when I would watch people spend $2,500 for a BK for a 90g tank back in the "good ol" days, which consisted of less than $100 worth of acrylic and pump that has been replicated so many times over the years for a fraction of the cost of the original.

 

Flabbergasting.

 

I was always more than happy with the ASM's and BM's (before they were big).

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HecticDialectics
Cast acrylic tubing is expensive.

Fabricating cast acrylic cones is expensive.

+ pump, specially designed impeller, gate valve.

 

As mentioned R&D.

 

After all that, they are bulky and fragile driving stocking and distribution costs up.

 

I reckon the materials cost for a decent skimmer would be higher than a LED fixture of the same price.

 

this.

 

 

Decent protein skimmer bodies are made from cell cast not extruded tubing.

 

Cone shaped bodies are made from cast acrylic sheet which is bent into a cone shape and welded.

 

Bubble plates are CNC machined.

 

The major parts of protein skimmers are not injection molded.

 

this.

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