Linear
Air Compressors, Diaphragm Compressors and Silent Pond Pumps
The
most efficient linear air compressors & diaphragm pumps for pond aeration
and other applications where clean, constant oilless air is required
We
use mainly these three models of small linear diaphragm pumps and
cheap pond pumps so please take the time to understand the limitations
and benefits of each one. If you have any questions or need help
we will be glad to assist you!
Understanding
the concept of building the perfect aeration system means having a
basic understanding of the various air pumps, blowers and compressors
that are available. The compressor or pump you choose will require
some understanding and knowledge as to what you need the pump to do.
Every pond diffuser, every length of airline, and every airstone connected
to your compressor will require a specific CFM (cubic feet per minute)
of airflow as well as a required PSI (pounds per square inch) to overcome
the head-loss and internal friction of every foot of tubing and the
specific resistance inherent in the diffuser system being used.
One important factor in choosing a silent linear air pump or diaphragm
pump is to understand that it requires 1 PSI to push air bubbles to
a depth of 28" or 2.3 feet deep. So if your pond averages 6 feet
deep then before you even consider the number of diffusers or thetype
of diffusers to be used you have to ensure your electric linear air
compressor can deliver at least 2.6 PSI. But be careful because each
diffuser, whether it is a diffuser disc, an airstone or some sort
of homemade diffuser that you want to hook up to your cheap pump,
all of them will have a certain resitance that will add pressure requirements
to your formula.
A single membrane disc diffuser for example can add an extra 12 inches
of virtual depth (this means that every disc in your aeration system
will demand an extra 0.42 PSI on your compressor) while a high-efficiency
glass-bonded diffuser only have a registered air resistance of less
than 0.25 PSI.
If you are considering
one of these compressors then you likely are not running long lengths
of tubing...most of these low pressure systems can pump air through
standrad 3/8" and 5/8" for small distances from 50 or 200
feet depending on the compressor.
It is only when you need a compressor to push air through several
hundred feet of airline you need to cinsider the line loss calulation
of airline which is the amount of pressure and friction that builds
up against the walls of the tubing and the associated loss of pressure.
This means that in a length of 200 feet of tubing you might require
an extra 2 PSI to overcome the air volume friction based on the inner
diameter of the tubing.
Linear
Diaphragm Air Pumps
Our
Models, Price & More Info
 With
a higher PSI output and much lower watts than any pond pump
or compressor on the market these cheap air compressors have
become our favorites when the pressure requirements are beyond
the WhiteH20™ models listed above. With the smart and efficient
motors in these UL-Listed and CE-Approved pumps, pond aeration
systems just keep getting easier and any home-made do-it-yourself
aeration system will be trouble-free with with these long-lasting
and powerful linear air pumps.
The linear air pumps used by ThePondReport.com average about
40% more airflow and about 20% lower 110/115 V power consumption
than similar models. 230V is also available for the same price.
Specify your power needs by email when ordering. You will see
similar looking air pumps imported from Asia like pumps from
China or Tiawan Made pumps but the SweetH20® brand is significantly
different and while we don't want to insult any manufacturer...these
pumps are the best available!. These are designed for 60-Hz
(North American) operation to produce maximum efficiency. These
linear compressors model permit continuous operation exceeding
3 years in normal continuous usage.
 Our
Top Silent Linear Air Pump Brands Discounted On Amazon:
Hi-Blow
| Medo
| SECOH
| Blue
Diamond | HAKKO
Linear Air Pumps | Matala
| Danner
Air Pump
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an Amazon affiliate we may recieve payment for purchases made
through Amazon.
The
only maintenance required is minimal: Simply clean the air inlet
filter as needed with a few sharp breaths, a vacuum passage
or according to the included instrcution manual. As with all
of our oiless pond aeration air pumps there is no need for lubrication,
and the included outlet air is always clean. Besides being ultra-efficient
they are also super-quiet. These units are often found in University
classrooms, pet store or laboratory or anywhere, including the
pond, where clean efficient pumps are a must!
Each long-lasting pump uses a heavy, cast-aluminum, drip proof
housing. Standard models are 115V/60 Hz with 6' power cords.
UL-listed and CE-approved. Three-year warranty (does not include
filters or diaphragm). Available in 230 V and 50 Hz by special
order only. To maximize the life of these linear compressors
it is best to keep the unit in a shed or build a small structure
like a doghouse to hold it from the elements.
By operating your pump within the correct pressure range (we
like to stay about 25% less than the maximum PSI rating of the
model) you will greatly reduce the need for changing diaphragms,
heads or valves. Purchasing a repair kit, despite your best
installation intentions, is not a bad idea. If all parameters
of the pumps are respected you may need to change the diapghrams
once every 24 to 48 months but it's easier to have one on hand
in your tool-shed instead of buying your repair kit online after
a break-down as often fish don't take a fancy to being a week
without air! Because these pumps have an available repair kit
they are our highest reviewed pond aeration pump.
60 LPM Diaphragm Air Pump
- 2.2 CFM Open Flow 6 PSI maximum
120 LPM Diaphragm Air Pump - 4.4 CFM Open Flow 7 PSI maximum
250 LPM Diaphragm Air Pump - 9.0 CFM Open Flow 7.5 PSI maximum
Price
Includes USA Shipping
Each
long-lasting pump uses a heavy, cast-aluminum, drip proof housing.
Standard models are 115V/60 Hz with 6' power cords. UL-listed
and CE-approved. Three-year warranty (does not include filters
or diaphragm). More
Info |
Linear
Piston Air Pumps Price
& More Info
These
are not linear "diaphragm," but true linear "piston" type pumps.
Since the only moving part—the piston—floats on a bed of air,
a exceptionally long service life can be expectedThese
are not linear "diaphragm," but true linear "piston" type pumps.
Since the only moving part—the piston—floats on a bed of air,
a exceptionally long service life can be expected (8 years of
continuous life is not uncommon). You will experience exceptionally
quiet, energy-efficient operation and clean, oil-free air. An
outdoor-rated housing, a grounded power cord, 3/4" hose barb
and 115V/60 Hz are all standard. UL-listed. One-year warranty.
• Extremely quiet.
• Outdoor-rated housing.
• True linear piston.
• Exceptionally long service life.
• Outstanding energy efficiency.
MEDO
Piston Air Pumps
 The
pump's unique and simple structure has no complicated transmission
mechanism such as a crankshaft, connecting rods, ball bearings,
etc., which are widely used in between the motor and compressor
in conventional pumps.
The activated electro-magnet attracts the piston against the
return spring, while air is taken into the cylinder through
the opened inlet valve. When the electro-magnet is deactivated,
the return spring pushes the piston back, and the compressed
air is brought out of the cylinder through the now open outlet
valve. The system can function as either an air compressor or
as a vacuum pump.
Replacement of the piston is easily achieved by simply removing
the end cap connected to the pump housing by unscrewing the
four screws which hold the cap in place. Completely oil free
construction is achieved by the combination of smooth Teflon®
seals with superior resistance against abrasion on sliding piston
surfaces and the "air bearing effect" created by the unique
air path design.
Our Top Silent Linear Air Pump Brands
Discounted On Amazon:
Hi-Blow
| Medo
| SECOH
| Blue
Diamond | HAKKO
Linear Air Pumps | Matala
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Longer
Durability Oil free construction requires no periodical
oil-up. This simple mechanism has the fewest number of moving
parts possible. Long and stable performance is assured
57
LPM Linear Piston Pump - 2.0
CFM 3 PSI max
85
LPM
Linear Piston Pump
- 3.0 CFM 4 PSI max
160 LPM
Linear Piston Pump
- 5.7 CFM 4 PSI max
The Pond Report Online Store
|
Price
Includes USA Shipping
Each
long-lasting pump uses a heavy, cast-aluminum, drip proof housing.
Standard models are 115V/60 Hz with 6' power cords. UL-listed
and CE-approved. One-year warranty (does not include filters
or piston cups). .
More Info
Self-cooling design Cool intake air is blown onto the
electro-magnetic coils through an orifice, making sealed construction
possible and preventing the escape of operating noise.
Low noise level The machine has no complex transmission
system. This results in the lowest noise level possible due
to the absence of rotating parts or ball bearings. Operating
noise is also quelled due to the pump's sealed configuration.
Small
output air pulsation Piston reciprocation is synchronised
with input power frequency regardless of load (i.e.; 3000 rpm
for 50Hz and 3600 rpm for 60Hz). Such high RPM adversely reduces
each discharge volume and eliminates any problems caused by
pulsation.
Low Power Consumption The piston is the only component in
the system which moves. The absence of transmission usage to
pass the power to the piston means that there is a large reduction
in energy loss, and an improvement in efficiency over other
pumps.
Compact composite structure This unique system enables direct
reciprocation of a single part which consists of composite piston
and armature. The incredibly compact and lightweight design
was achieved by combining what are two different functions in
other pumps - motor and piston - into a single structure.
Anti-overpressure mechanism When the output pressure exceeds
the rated value the piston stroke will automatically diminish
and prevent over-pressurising. At the same time, the current
and power consumption will also be automatically reduced, thus
eliminating possible failure caused by tentative overload.
Low vibration The aluminium die-cast piston produces very
little vibration or kick-backs. Little or no damage from vibration
stress is therefore sustained during operation. Even secondary
vibrations are absorbed by special soft rubber feet.
Quick Response Due to the lower starting current, the unit
can immediately respond to frequent on-off input signals, even
under back pressure conditions.
|
Diaphragm
Air Pumps
 These
tough air compressors can feed 1 to 5 pond diffusers or airstones
(according to CFM requirements) in a pond up to 8 feet deep.
Best longevity is delivered when operating pressure is between
2.2 and 3.5 PSI ...see the operating curve chart below to design
your homemade aeration system using these pumps or send us an
email with questions. Run one or more diffusers or airstones
with these pumps!
I have so many clients ask where to get a long lasting air pump
to run a few diffusers and have found a good line of imported,
outdoor rated air pumps and I finally found a line that I think
outperforms many models that I have reviewed.
 These
are sturdy, very reliable, and quiet air pumps that will provide
a long service life and they have a two-year warranty which
isn't bade because I've tried many diaphragm pumps that seem
to need a diaphragm repair kit every 6 months! Built for outdoor
use, keep it protected to prolong the average life-expectancy.
You don't need anything fancy; just build a small box, preferably
with ventilation (small fan) to keep your pump out of the snow,
rain and away from the gnawing teeth of muskrats, beavers or
other pond creatures. They are designed for outdoor use but
why not protect your investment?
Our
Top Silent Linear Air Pump Brands Discounted On Amazon:
Hi-Blow
| Medo
| SECOH
| Blue
Diamond | HAKKO
Linear Air Pumps | Matala
| Danner
Air Pump
As an
Amazon affiliate we may recieve payment for purchases made through
Amazon.
Most pumps deliver a more-than-modest output from 1.8 to 7.9
cfm (50 to 223 lpm) of oil-free air with a maximum pressure
of 4 psi. Remember that each 2.3 feet of water is 1 PSI so with
a max dishcharge of 4PSI you can pump air to a maximum of 9
feet with the larger model...but this doesn't include resistance
from the diffusers you are using or the friction loss from the
tubing etc. Each pump has a 3/4" barb outlet and grounded power
cord (5 ft). UL-listed. Two-year warranty.
Use the specification curves of each model pump to determine
how many diffusers can be used with each pump as each type of
diffuser (silica bonded stone, membrane, pourous granite) will
have varying resistance.
80
LPM Diaphragm Air Pump
100 LPM Diaphragm Air Pump
120 LPM Diaphragm Air Pump
Price Includes
USA Shipping
These
sturdy, reliable, very quiet pumps will provide a long service
life. Built for outdoor use, The diaphragm air pumps deliver
oil-free air with a maximum pressure of 4 psi. Each pump has
a 3/4" barb outlet and grounded power cord (6 ft). More
Info
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Pond
Books and Guides we recommend can be found on Amazon
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through Amazon.
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Earth
Ponds
Earth Ponds: The Country Pond Maker's Guide to Building,
Maintenance and Restoration
There
is nothing like a pond! What else can simultaneously increase
your aesthetic pleasure, offer recreational opportunities,
help the environment, and increase the value of your land?
This is the recognized standard on ponds, now expanded to
include a comprehensive guide to living happily with your
completed pond and keeping it perpetually healthy.
Here is everything you need to know about planning, digging,
sculpting, and maintaining your pond.
It’s the condensed wisdom of a man who has spent a lifetime
building, restoring, and maintaining ponds.
|
The
Pond Specialist
The Pond Specialist: The Essential Guide to Designing,
Building, Improving and Maintaining Ponds and Water Features
(Specialist Series)
This book is nothing less than essential for those of us embarking
on designing and building our own ponds.
If like me you have zero knowledge of the field and are clueless
as to the difference between types of pond, butyl liners versus
rigid liners, pond plants, fish and how water features actually
work, then this book will be your bible.
Imagine
building a waterfall, romantic fountain, or beautiful pond
in your own backyard.
|
The
Pond Book
The Pond Book: A Complete Guide to Site Planning, Design
and Management of Small Lakes and Ponds
Ponds, when properly managed, enhance a property. Ponds provide
an environment for fish, recreational entertainment through
swimming or boating, a satisfying wildlife habitat, and higher
real estate value to any rural property.
Written for the serious layperson, The Pond Book explores
the wide variety of pond ecosystems available, and their function;
topographic and soil requirements, design and construction
techniques, wildlife management, fish species and their cultivation,
local bylaws affecting pond maintenance, algae and plant control,
parasite problems, chemical and physical parameters of water
sources, and water control / erosion devices.
|
Managing
Lakes and Reservoirs
Managing Lakes and Reservoirs
Understandable and useful, Managing Lakes and Reservoirs addresses
the enormous amount of information on lake management that
has developed in the decade since the publication of the manual’s
first two editions (Lake and Reservoir Restoration Guidance
Manual, 1988 and 1990).
The first two manuals dealt primarily with restoration of
lakes, but this third edition moves beyond restoration issues
to focus on ongoing management of lakes and processes that
communities of citizens, policymakers, scientists, and enforcement
agencies can use to achieve desired outcomes for their local
lakes.
Distributed for the North American Lake Management Society
|
SECOH
Air Pumps
Popular Models Include: EL-60, EL-80, EL-120W, EL-150, EL-220
The SECOH line of pumps is very popular in Europe but is now
available in USA and Canada as well. The best price for a EL-60
is $275, the 80-17 is $325. Known to wear out wuickly if the
max pressure reatings are surpassed the warranty is only one
year.
Conversion
guide/calculator : 1 l/min = 0.06 m³/hr, 1 m³/hr = 16.7 l/min
100mbar = 1m water depth Air Delivery : Please note that 'Open
Flow' relates to the maximum air delivery with nothing connected
(!) .. to calculate the actual air delivery at any given depth
download the appropriate datasheet from our 'Free Downloads'
section. All SLL & EL range pumps come with a European Schuko
plug which can be cut off for direct wiring or an adapter can
be supplied with a fused European to UK plug adapter. Euro price
shown is fixed at x1.30. Actual price will be at the correct
conversion on checkout. VAT is not a component of the price
shown as Parts and Pumps is not currently VAT registered so
does not claim or charge VAT. EL-120 W Secoh Pump EL120 W Twin
Linear Compressor Optimal Pressure - 0.25bar Open Flow - 225
l/min Sound Level - 39 db(A) Max Power - 131w @ 200mbar Dims
(LxWxH) - 268.5x357x228(mm) Connection - 27mm Ø Net Weight -
16kg see download section for more information Key Features
: Same spares kit for both heads Optional outlet ports (New!)
Lesser load and longer predicted lifetime using 2 heads and
should one head stop you still get 50% airflow We recommend
the purchase of a pressure relief valve SE11 with this pump
to avoid over pressurisation. click to see larger image Price:
£358.00 [€465.40]
Protect your pump with our new and improved housing and platform!
SECOH SLL SERIES PUMPS Secoh Linear Air Pump Model SLL-40 1-year
warranty 115V, 60HZ, 45W 1.62 CFM at 1.7 PSI Airflow = 46 liters
of air per minute FREE SHIPPING! Secoh SLL-40 $225.00 Quantity:
9.70" L x 6.97" W x 6.93" H SLL Series Operating Instructions
SLL Series Repair Instructions SLL-20-50 Pump
Secoh Linear Air Pump Model EL-60 1-year warranty 115V, 60HZ
2.6A, 56W 2.30 CFM at 2.1 PSI Airflow = 65 liters of air per
minute SALE! FREE SHIPPING! Secoh EL-60 $275.00 Secoh EL-60
Secoh Linear Air Pump Model EL-80-15 1-year warranty 115V, 60HZ
2.6A, 61W 2.82 CFM at 2.1 PSI Airflow = 80 lliters of air per
minute SALE! FREE SHIPPING! Secoh EL-80-15 $285.00
Secoh Linear Air Pump Model EL-80-17 1-year warranty 115V, 60HZ
2.6A, 71W 3.00 CFM at 2.4 PSI Airflow = 85 liters of air per
minute FREE SHIPPING! Secoh EL-80-17 $325.00 Available at:
www.septictankparts.com
ALITA Air Pumps
Our
Top Silent Linear Air Pump Brands Discounted On Amazon: Hi-Blow
| Medo
| SECOH
| Blue
Diamond | HAKKO
Linear Air Pumps | Matala
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AL-15A -- $119.75 Power: 17W Output: 20 lpm (liters per minute)
@ 1.4 psi - Typically good for at least 20-25 aquarium air outlets,
variable depending on tank depth and the amount of air desired
at each outlet. AL-40 -- $169.75 Power: 46W Output: 48 lpm @
2.18 psi - Typically good for at least 50-60 aquarium air outlets,
variable depending on tank depth and the amount of air desired
at each outlet. AL-60 --$145.75 Power: 60W Output: 68 lpm @
2.18 psi - Typically good for at least 65-75 aquarium air outlets,
variable depending on tank depth and the amount of air desired
at each outlet. AL-80 -- Buy it for $337.75 Power: 85W Output:
85 lpm @ 2.18 psi - Typically good for at least 80-95 aquarium
air outlets, variable depending on tank depth and the amount
of air desired at each outlet. The new style AL-80 takes the
Al-80/120 repair kit. The new style pumps are apple green in
color. The old style AL-80 takes the AL-60/80 repair kit. AL-120
Power: 124W Output: 130 lpm @ 2.9 psi - Typically good for at
least 125-145 aquarium air outlets, variable depending on tank
depth and the amount of air desired at each outlet.
ALITA Linear Air Pump Download Literature Designed to deliver
high volume of steady airflow at low-pressure ranges, ALITA
Linear Air Pumps are of high efficiency, low energy consumption
and perform with low operation noise. With no sliding parts
and oil-less components, ALITA air pump requires no lubrication
and transfer air without any contamination. In addition to a
wide range of standard pump models that can be utilized off
shelf, we also offer OEM and customized linear air pumps to
industry for original equipment application. OEM business demands
reliability, performance, efficiency and customer satisfaction.
Let ALITA linear air pumps be a part of your product solution.
Product Features Steady airflow Oil free, no contamination or
pollution Reliable intermittent or continuous duty operation
Long service life Quiet and low vibration Low energy consumption
Compact design and solid construction Indoor or outdoor operation
Thermal protection Simple maintenance Applications Aeration
Air purification Air sampling Bubble bath Gas analyzer Liquid
agitation Medical and scientific equipments Pneumatic beds;
air mattresses Wastewater treatment; aerobic treatment Various
industry
RoHS Compliant RoHS Compliant = Pb-Free = Green Alita Linear
Air Pump introduced from 2006 onward will meet the Restriction
of Hazardous Substances (RoHS) compliance directive of the European
Union. The full description of this legislation, commonly called
RoHS, is "Directive 2002/95/EC of the European Parliament and
of the Council of 27 January 2003 on the restriction of the
use of certain hazardous substances in electrical and electronic
equipment. The directive requires manufacturers to significantly
reduce lead, mercury, hexavalent chromium, cadmium, polybrominated
biphenyls (PBB), and polybrominated diphenyl ether (PBDE) content
in electronics and electrical products sold in the EU beginning
in July 2006. Alita developed an internal compliance team to
direct these efforts and implement RoHS compliance under the
EU directive. Alita implemented aggressive timelines to meet
requirements in advance of the July 2006 compliance date and
will continue to work closely with key customers on their specific
requests. Available at: ww.alita.com
LINEAR
air pumps from Malibu Water
Our
Top Silent Linear Air Pump Brands Discounted On Amazon: Hi-Blow
| Medo
| SECOH
| Blue
Diamond | HAKKO
Linear Air Pumps | Matala
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Amazon affiliate we may recieve payment for purchases made through
Amazon.
Linear 40 - for aeration of small septic tanks and water tanks
of 500 gallons or less. - $350 for complete system with 20'
of 3/16" air line and diffuser. Linear 80 - for aeration of
medium septic tanks and water tanks of 1000 gallons or less.
- $450 for complete system with 20' of 3/16" air line and diffuser.
Linear 120 - for aeration of large septic tanks and water tanks
of 3000 gallons or less.- $650 for complete system with 20'
of 3/16" air line and diffuser. 1 acre pond aerator - The economical,
oil-less 905, 1/15 hp but fully capable to aerate a 1 acre pond
completely - $350 w/ 100' of 3/8 air line and a lake bed diffuser.
3 acre pond aerator - large, heavy duty 1/4 hp oil-less air
pump, 110AC, w/ 100 of 3/8" air line and lake bed diffuser.
- $450 Note - the linear pumps are quieter than the oil-less
piston pumps. A waterproof and sound dampening case is available
for the above pumps @ $100 if needed. All repair parts are available
for these pumps which all come with a one years manufactures
warranty. There are no timers, fans, etc needed for these pumps.
They are designed to run 24/7 for years. Koenders - 3 acre pond
aerator w/ heavy duty water proof case - $650. This is a very
heavy duty aerator made for farmers and ranchers. It weighs
about 100 pounds. It is a bit noisy but a sound dampening case
which can be buried is available @ $100 if needed. This pump
will last for years, has a 1 year warranty, parts are available
and we have sold thousands of them. Again, no timers, fans,
etc. It is designed for running 24/7. It comes with 100' of
air line and a lake bed diffuser.
QUIET AERATION - if quiet operation is necessary for any aeration
project and you have 110AC available, we have fitted a submersible
water pump into one of our large lake bed aerators that will
drive the bottom water to the top of the surface....where the
real aeration occurs. Not using air bubbles to lift the water
does reduce the air exchange slightly but the pond is aerated
very well with lots of water action at the surface thus providing
all the usual aeration benefits. BACTERIA - We all run on bacteria...including
our ponds. If you have a very bad algae or hydrogen sulfide
problem that needs immediate attention, we can supply a 5 pound
block of bacteria designed for nutrient removal in ponds. Put
the block into our Lake Bed Aerator and the rising air bubbles
will carry the bacteria into all of the pond water. The block
will last about one month...which is about the amount needed
to clean out a 2 acre pond. After the block is gone, just keep
the air going. The good aerobic bacteria are there doing the
job....eating all the algae's food....and replacing all the
anaerobic bacteria that produce the Hydrogen sulfide. 5 pound
block of Pond Bacteria - $50. Lake Bed Aerator - $350
Available at: www.malibuwater.com : OUT OF BUSINESS
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