Friday, December 16, 2011

Skimming Off the Top - Profits From Inferior Skimmers

!: Skimming Off the Top - Profits From Inferior Skimmers

Trading Reliability, Simplicity and Effectiveness For Skimmer Profits

Tom Barthel's article, "Pulling the Envelope," in the May 2007 issue of Water Garden News, has got me going. In it he said, "Technological innovations for skimmers and filter-fall products have leveled off recently. On the rise, instead, are units that use creative features and meet the customer's need for low maintenance, durable products sold at competitive prices."

He is confirming the truth about what I have been preaching for over ten years. The true reason that sales of liner skimmers and fall-filters have leveled off is because their poor performance is coming back to "bite" the skimmer scammers in the bottom line! These skimmers are designed for making profits, not filtering ponds.

The so-called pond experts operate like the pharmaceutical industry. They advise consumers on the so-called benefits of the very products they produce and sell, in this case skimmers. Drug companies sell products which generally mask the actual symptoms of a disease and in the process mess up the body's balance even more. This creates yet a new need for another drug to mask yet another symptom.

If the skimmer's engineering and design is not effective in providing the proper filtration of water, it will not only require regular cleaning, but will demand another "drug" or band-aid. Hence, yet another innovation sweeps the planet, and this engineering marvel is designed to solve yet another water garden ailment. Some of the "drugs" used to treat ineffective filters are what I call the "flim-flam filter falls," the "bio-balls filter falls," the "ooh-la-la cha-ching cha-ching filter falls".

These are some of the sales pitches you might hear from the purveyors of miracle potions for your ailing water garden: "Oh you poor thing, your pond is turning green, your water has body odor. ( the fish are exhibiting an evolutional behavior, by trying to leave the water and live on land.) Here, we just happen to have something for those two symptom. It's called 'Green Be Gone', only a pint and we recommend you buy a gallon. Then, add three bottles of our 'fish safe' (we're not sure about the turtles) and plant-safe, 'Stink Be Gone.' So that your fish will go back in the water where they belong, we recommend our very own private label, 'Home Sweet Home pH Up.' And if that does not work, for another per pint, try our 'Home Sweet Home pH Down.'

Oh, and I have some bad news for you. My technician just got back from your house call and discovered that your leaky pond is from a big fat rat that chewed a hole in it. Sorry, our warranty does not cover that, only factory defects."

This is why the liner pond experts recommend covering the bottom of your pond and the catch basin of your pondless waterfall with rocks. It is to give you added surface area for the nitrifying bacteria to grow which is not provided by the cheaply produced, expensive to buy, state-of-the-art, Berkeley-designed, MIT-engineered, Rubber Maid approved, maintenance-laden, grotesque profit-making, scum-sucking skimmers and fall-flushing plastic wonder devices!

I don't claim to be political, but I do claim to be correct. Why? Because "a man with experience is not at the mercy of a man with an argument." After building more than 1,900 concrete ponds and waterfalls over 26 years with no cracks or leaks, my experience speaks for itself. I have always wondered why I have no competition in the area of professional concrete ponds and waterfalls. The answer is simple: everyone is using liners. Why? Because they are cheaper? No! It's because the liner industry has spent millions in advertising that they are cheaper.

They never mention all the negative aspects of liner construction, such as rodents, tree roots, sharp objects, the weight of the rocks, etc., that can puncture holes and cause leaks. Let's compare the cost differences in construction and long-term maintenance of both concrete and liner ponds.

Let's look at the facts, rather than water garden hype, liner industry tent revival terminology, and biased opinions from the liner messiah's disciples, the tinker-toy skimmer and filter salesmen. To be fair with my comparison, I'm not going to use the pond liner "messiah' Aquasacape as my example, even though everyone knows they are truly the "Microsoft" of the liner industry.

I'm going to use someone who claims to be the best in the industry. Proof of this fact is that he suggests you google "Pondless" and you will find him at the top of the first page. He also states' "My skimmers, filters and pumps are the best in the entire water garden industry." His statements are now in the public domain since they can be found on his website.

So let's use Russell Water Gardens for our comparisons between two ponds: one built with a rubber liner and the other constructed professionally with concrete, rebar and highly efficient, quality equipment.

I. Pond 12' x 14' x 4.5' deep (no rocks)

Russell Water Garden's equipment and materials pricing:

1. 25' x 27' liner (required for a pond 12' x 14' x 4.5') 5

2. 25' x 27' underlayment material 5

3. Hydro Centrimax HC-050 4,500 gph, 6.5 amp, 2 yr. warranty (Russell's own pump) 0

4. Hydroclean "Piper" skimmer (Russell's own) 0

5. Dolphin Hydro Vortex filter (Russell's own) 0

6. 100 ft. 2" flex PVC pipe 0

7. 80-watt UV light 4

8. 10 20-watt underwater lights 0

TOTAL (with everything still in the box) $ 5,014

II. Professional Concrete Pond

Pricing of materials available to contractors and/or homeowners, including labor:

1. 5 yards concrete (3500-7000 psi) with stealth fiber 5

2. 426 sq. ft. rebar (8-10" on center @ per sq. ft. including materials & labor 2

3. Concrete pumper - 5 yards (ranges from 5-200) 0

4. Concrete labor (3 men @ /hr. x 3 hrs) 5

5. 3 bags Thoroseal plus labor 0

6. Sequence pump (#5800SEQ23 w/leaf basket; 5800 gph, 3.1 amps, 3 yr. warranty) 3

7. Aqua Ultraviolet Ultima II 4000 filter 5

8. 100 ft. of 2" flex PVC piping 3

9. Emperor Aquatics 80-watt UV light with wiper 9

10. Skimmer (professional concrete/gunite pond, with low water valve waterway Renegade) $ 87

11. 10 20-watt underwater lights - Alpine 0

TOTAL cost of Material and Labor (project completed) $ 4,329

So far, I have shown a difference between the costs of two types of ponds, except for the important fact that labor is not included in the first example and it is included in the second. Now for some information on construction methods and pumps.

1. Construction Method

Liner: These manufacturers only provide warranty against factory defect, not from heavy sharp rocks, gnawing mice, rats, ground squirrels, gophers, chipmunks, groundhogs, tree roots, sharp objects, animal claws such as raccoons, dogs, etc. Concrete (3500 - 7000 psi rebar with stealth fiber): When constructed professionally, concrete ponds and waterfalls can carry a lifetime warranty, something that no liner can do.

2. Pumps:

Most liner ponds use sump pumps, which use 50 to 60% more energy than a high-efficiency centrifugal pump, and which carry an inferior warranty. In the previous comparison, the Sequence pump costs 35% less than Russell's, and it pumps 25% more water per hour for 1/3 less the energy and with 1/3 longer warranty than Russell's pump. In six years, if you had to replace Russell's pump every two years (the length of the warranty), the cost of the pumps plus electricity would be: ,950 (3 pumps) + ,853 (energy cost using it 24 hrs. a day, 7 days a week for 6 years) = ,803. On the other hand, with the Sequence 5800SEQ23 pump, there is a 3-year warranty; over 6 years the pump cost would be 6 (2 pumps) + ,314 (energy cost @ 24 hrs./day, 7 days a week, 6 yrs.) = ,160.

So the total cost of energy for the Hydro Centrimax pump plus the warranty replacement cost over six years is a whopping ,643 more than that of the Sequence pump!

NOTE: Russell's website publishes the following statement: "You will find that Hydro CentrimaxTM pumps are the best value of any centrifugal pump on the market today."

Russell also boasts about his skimmer being the best. Twenty dollars worth of plastic that he sells for 0 - let's see if they really are the best.

Here are his instructions for cleaning his "HydroClean Pond Skimmer:

1. "Lift the lid off the skimmer and take out the skimmer net at the front."

2. "Shake the skimmer net to get rid of any debris." [Try not to get any on you.]

3. "If there is any algae on the skimmer net, hose it off as needed."

4. "Replace the skimmer net in front of the skimmer unit."

5. "Behind the net there is a brush rack, a bar with large brushes hanging from it. Pick up the brush rack and shake it to get the debris off." [Be sure not to splatter any of the pond scum, fish waste, worms and parasites on yourself.]

6. "Replace the brush rack in the skimmer behind the skimmer net." [Be sure to wash your hands very thoroughly when you are finished.]

7. "Failure to clean the skimmer can lead to slow water flow and place stress on the pump. It can even cause the pump to overheat and burn out. Check the skimmer often to see if it needs maintenance."

Now, let's compare Russell's 0 maintenance-intensive, messy skimmer with the Waterways Renegade professional concrete pond skimmer at only .

Here are the maintenance instructions:

"Lift the lid, remove the basket, dump debris, replace basket, close lid. No need to check skimmer often. If the basket gets full, the pump will not be affected, even if the water level in the pond drops below the skimmer opening. This skimmer has a special float valve system that by-passes the skimmer in the event of neglect or low water level."

Russell's biofilter is very similar to his skimmer in design. While it is basically a molded tub, Russell claims his "Hydro Vortex" filter supports a higher number of fish than other brands of biological filters. Even though, there are several manufacturers of biological filters that can easily out-perform this simple elementary and cheap design. It is the same as comparing an economy car to a high performance luxury model.

Only in this case, you are comparing an economy filter with a state-of-the-art, high performance, engineered, no maintenance (a simple turn of a handle to clean it) filter for only more.

Bottom line I repeat: "A man with experience is not at the mercy of a man with an argument." The pond I described is my pond.

I have the Sequence pump, Aqua Ultraviolet filter and UV light, anti-vortex drains, professional skimmer, and four times more fish than the so-called experts say I should have. My pond is crystal clear, my fish are healthy, and I have not lost one of them to disease in the four years I've had them. The only chemical that I have ever recommended to any of my 2,000+ clients in their professionally constructed concrete pond is rock salt, which controls the algae and aids in the slime coat of the fish.


Skimming Off the Top - Profits From Inferior Skimmers

Pathfinder Luggage Ideas

Wednesday, December 7, 2011

Danner 20360 5100 GPH High Head Pond Skimmer Pump 30-Foot Shut Off

!: Save Danner 20360 5100 GPH High Head Pond Skimmer Pump 30-Foot Shut Off Buy Now


Rate : | Price : $250.63 | Post Date : Dec 08, 2011 00:39:37
Usually ships in 24 hours

The Proline Skimmer pump with Hy-Drive technology is a continuous duty pump designed for use inside a pond skimmer to move large volumes of water silently and efficiently through filtration systems, a waterfall, stream or fountain. It's compact size allows it to fit in virtually any skimmer. Maximum flow rate - 5,100gph. Maximum pumping height - 30ft. Current is 3.6A/439 Watts. 2-Year Manufacturer Warranty

Colorspa Hair Color Discount Pet Safe Underground Fence Order Now Great Deals Landice Treadmills

Monday, November 21, 2011

What is the Difference Between an External Pond Pump and a Submersible Pond Pump?

!: What is the Difference Between an External Pond Pump and a Submersible Pond Pump?

A person just getting into ponds may be confused at the terminology and types of pond pumps, particularly when trying to determine the type of pump they need for their pond. The most common questions is "What is the difference between an external pond pump and a submersible pond pump?"

The easiest and most simplified answer is to say that one is used outside of the pond (external) and the other is used inside of the pond (submersible). However this really does not fully answer the question.

It is true that an external pond pump is placed on dry ground outside of the pond, but there are other things to note about an external pump. External pond pumps. are going to be best for larger ponds due to the fact that they are more energy efficient and are capable of moving larger volumes of water. Usually ponds over a couple of thousands of gallons will benefit more from an external pump or ponds with larger water features may also need a larger external pump due to the distance that the water is going to travel to supply water to the water feature as in the case of a large waterfall. It is also important to note that some external pumps may also need to be hardwired and are not simply "plug and play" like the submersible units.

Speaking of submersible pond pumps Submersible pumps are going to be best used in small ponds or when powering smaller water features or equipment like a small filter. Submersible pond pumps are very easy to install. Basically they are placed in a desired location in the pond and plugged in and that is it. Furthermore, many submersible pumps come with fountain and spray attachments so that they can easily be utilized as a small fountain feature.

Remember to effectively choose the correct pond pump for your pond, pay attention to the gallons per hour (gph) that the pump move and select the pump that will move the entire volume of water at least once in an hour. So a 5000 gallon pond will most likely need an external pond pump with a rated GPH of at least 5000.


What is the Difference Between an External Pond Pump and a Submersible Pond Pump?

Safety Mats Order

Monday, November 14, 2011

Choose the Right Oil Skimmer For Cost-Effective Oil-Water Separation

!: Choose the Right Oil Skimmer For Cost-Effective Oil-Water Separation

Step One: Understand the Basics. First, understand that while designs vary, all oil skimmers rely on the fluid properties of specific gravity and surface tension. Most use a moving medium to remove floating oil from the fluid's surface (the exception is a floating suction skimmer). Floating oil and grease cling to skimming media more readily than water. This allows media in the shape of a belt, disk, drum, etc. to pass through the fluid surface and pick up floating oil and grease while rejecting most of the water. The oily material is subsequently removed from the media with wiper blades or pinch rollers.

In addition, realize that the kind of water contaminant being removed affects the kind of skimmer you should choose. For example, grease skimming involves higher viscosity hydrocarbons. In that case, an oil skimmer must be operated at temperatures high enough to keep the grease fluid. This may require heating elements in the fluid reservoir and skimmer unit to keep the grease in a liquid state for easier pick-up and discharge. If floating grease forms into solid clumps or mats in the reservoir, a spray bar, aerator or other mechanical apparatus can be used to break up the grease and facilitate skimming.

Finally, recognize the power of a skimmer. Often oil skimming by itself can achieve the desired level of water purity. In more demanding situations, skimming is a cost-effective means of removing most of the oil before using more complicated and costly treatments, such as coalescers, membrane filters and chemical processes. This is often the case in bioremediation of groundwater, where an oil skimmer is used as a first step to remove most of the oil that's contaminating the water.

Step Two: Make Sure You Have a Suitable Application. When properly selected and applied, oil skimmers are highly economical solutions for separating oil from water to allow their reclamation and reuse or safe disposal. However, there are certain applications that are more suitable than others, which allow skimmers to achieve optimum results. Typical applications best suited for oil skimmers encompass:

· Wastewater sumps where removing floating hydrocarbons can reduce the cost of disposal and lower the contingent liabilities of wastewater discharge.

· Coolants and cutting fluids where skimming tramp oils extends coolant life, improves the quality of machined parts, reduces irritating smoke that forms during machining, lessens the chance of dermatitis and helps prevent the fluid from developing a "rotten egg" odor.

· Heat treating operations where trench oils must be removed from heat-treated parts, and can be captured with a skimmer for reuse or disposal. This reduces oil purchases, prolongs wash water life and lowers disposal costs.

· Parts washers where removing floating oils from a wash tank prevents re-contamination of the parts as they are removed from the fluid and extends fluid life.

· Food processing facilities where the removal of vegetable oils, greases and animal fats from a plant's wastewater stream reduces processing and disposal costs.

· Parking lots, garages and service facilities where waste oil from leaks, spills and other sources must be retrieved from sumps before water can be discharged to storm or sanitary sewers.

· Outdoor ponds, lakes and basins where floating oils are present, skimmers provide inexpensive and effective removal, solving a serious environmental problem.

· Oil recovery/monitoring wells where a belt skimmer can be used instead of a down well pump to remove oil, fuel and other hydrocarbon fluids. Generally, this is more cost-effective and reduces maintenance headaches. Skimmers can reach depths of 200 feet or more and remove floating hydrocarbon products despite fluctuating water tables.

· Remediation processes where skimmers can be used effectively in tandem with other types of separators, or additional technologies to reduce the overall cost and time required for cleanup. For example, after removing most of the oil with a skimmer, biological agents can be used to remove the remaining water contaminants.

Step Three: Match the Oil Skimmer Design to Application Characteristics. There are several types of industrial oil skimmers. Choosing one best suited for your application will maximize oil removal while minimizing capital outlay and skimmer operating costs. Pay particular attention to the following oil skimmer/application characteristics:

· Operating conditions - The performance and life of the pick-up medium, wiper blades, pulleys, etc. are affected by operating conditions. These include temperatures in and out of the liquid, the pH of the solution and the presence of solvents or other reactive chemicals. The oil skimmer and its components must be designed for these operating variables.

· Hazardous materials - Applications involving flammable materials or explosive vapors require the use of explosion-proof (or air-driven) motors and controls.

· Temperature/Viscosity - All oil skimmers require floating hydrocarbon material to be in a liquid, free-flowing state. (An exception to the floating oil caveat is dense non-aqueous phase liquids, which can be skimmed when a polymer belt skimmer medium is used to reach to the bottom of a tank where the contaminant has settled.) If floating oil or grease congeals or solidifies at ambient temperatures, the reservoir and/or skimmer will require heaters to maintain fluid flow.

· Removal Rate - Oil skimmer removal rates, expressed in gph, vary with oil viscosity. Typically, manufacturers rate skimmers using SAE 30 weight motor oil at 65°F (18°C). It's wise to ask for test data, especially if your application involves a much different viscosity. Your oil skimmer selection should be based on the maximum amount of oil to be removed within the shortest available time. (See Removal Rate Guidelines below.)

· Skimmed Water Content - All oil skimmers pick up some water with the oil; suction skimmers pick up more water than other types. High water content increases the cost to recycle or dispose of the oil. Generally, the ratio of water to oil decreases with thicker films of floating oil and slower moving pick-up media. A concentrator or decanter installed at the skimmer discharge port provides secondary oil/water separation that can reduce water content to nearly zero.

· Residual Oil - A skimmer removes oil as long as it is present. Depending on the oil influx rate and the oil skimmer's removal rate, residual oil in the water may be as low as a few parts per million. When further reduction is required, a secondary removal stage such as membrane filtration may be needed.

· Portability - In some plants, mobile equipment service shops, and remediation sites, a portable skimmer can sometimes service multiple machines, sumps, or wells.

· Tank or Sump Characteristics - The location, shape and capacity of a tank or water impoundment are major factors in choosing the right skimmer. Also consider fluctuations in water level, turbulence and possible emulsions. Although skimmers do not cause emulsions, they may have trouble removing certain types.

· Size/Design - Oil and water can emulsify when subjected to turbulence and other mechanical agitation. Avoid this by having water return to the tank below the liquid surface at as low a velocity as practical. Make sure the tank or sump provides quiet areas, weirs and sufficient volume to allow adequate time for oil/water separation.

· Shape - Tanks without nooks and crannies for oil to accumulate in are best. If you have an irregular shape, put the skimmer where the largest amount of oil accumulates. Consider a means of directing oil toward the skimmer such as a floating boom or baffle plate.

· Location/Installation - Questions to ask about the physical location and characteristics of the tank and collection container:
- Does skimmed material need to be pumped from the skimmer to the container?
- Will skimmer access for periodic maintenance be a problem?
- How much mounting space is available?
- Are tank or container modifications required? (Total skimmer system costs may involve additional components, tank modifications, and skimmer maintenance.)

Oil Skimmer Removal Rate Guidelines: Consider an example where the total oil influx is 200 gallons a day. The calculated average would be 200/24 = 8.3gph. However, if most of it comes during a single 8-hour plant shift, you probably need a removal rate three times that average, especially if you need to prevent the discharge of contaminated water to a sewer system. As a rule of thumb, specify approximately twice the maximum capacity you anticipate needing for normal conditions.

Part II of this article will cover different types of oil skimmers, their designs, and optional features.


Choose the Right Oil Skimmer For Cost-Effective Oil-Water Separation

California Approved Gun Safes Help Adult Tricycle Order Cheap Wholesale Lunch Totes


Twitter Facebook Flickr RSS



Français Deutsch Italiano Português
Español 日本語 한국의 中国简体。