This presentation is a brief overview of how aerating water can solve a variety of water quality problems.

1. POND & LAKE
WATER QUALITY MANAGEMENT
PRESENTATION
800.693.3144
www.aquamasterfountains.com

2. TODAY’S GOAL
• Review factors that impact water quality.
- Nutrients, Temperature, Oxygen
• Examine associated problems.
- Excessive algal & weed growth, fish kills, poor
clarity, foul odors, insect infestation, sludge build-up.

3. TODAY’S GOAL CONT’D
• Address problem management methods.
- Mechanical Control
- Chemical Control
- Biological Control
- Aeration

4. A Healthy Pond
• Balanced Ecosystem
• Problems Absent
• Sufficient O2 Levels
• Sufficient Aerobic
Bacteria Levels
• Fish and other Aquatic
Wildlife Present

5. Healthy Ponds

6. Unhealthy Pond
• Out of Balance
• High Nutrient Levels
• Aerobic Bacteria Cannot
Keep Pace with Nutrient
Loading
• Algae, Weed Growth
and Other Problems
Appear

7. Severe Problems

8. Nutrients
• Carbon Based Compounds Containing
Phosphorous and Nitrogen
• Phosphorous is the Greatest Contributor to
Aquatic Plant Growth
• Nutrients Come From Several Sources

9. Nutrient Sources
• Bottom Sediment and Dead Organic Matter are the
Primary Sources
• Run-off and Inlet Water are Secondary
• Nutrient Cycling Process Contributes
- Eutrophication Occurs
• Effluent (Treated Wastewater)
• Fertilizer Leaching

10. Eutrophic Ponds
A eutrophic lake (derived from the Greek, eu meaning 'good' / 'well'
and trophic meaning 'food' / 'nutrients') is a lake with high primary
productivity the result of high nutrient content

11. Hypereutrophic Ponds
lakes are very nutrient-rich

12. Temperature Factor
• Thermal
Stratification

13. Oxygen Factor
• Stimulates Aerobic Digestion Process
- Reduces Excess Nutrients
• Supports Food Chain and Entire
Ecosystem

14. How Oxygen Enters A Pond
• Rainfall (Natures Aerator)
• Atmospheric Contact and Wind
• Photosynthesis by Aquatic Plants and Algae

15. Oxygen Depletion
• Stress Occurs When Levels Drop Below 3 to 4
parts per million
• Late Night or Just Before Dawn
• Cloudy, Still Days
• High Nutrient Content
• After Chemical Application

16. Pond Depth Factor
• Shallow Depths Allow Warming and
Greater Sunlight Penetration
• Increased Photozone Accelerates Plant
Growth

17. How The Factors Interact
• As pond ages, nutrient levels rise due to increase in
bottom organic sediment, run-off and fertilizer use in
surrounding watershed. Algal and aquatic weed
growth increase. Algae and weeds die, sink to bottom
to decompose. This biomass will increase the aerobic
bacteria population, utilizing large amounts of
oxygen to digest the organic waste.

18. How The Factors Interact
• Due to thermal stratification, top and bottom layers
will not mix. Oxygen cannot reach the bottom to
support aerobic digestion. Oxygen depletion will
occur and may cause nutrient cycling, fish kills, and
foul odors caused by anaerobic digestion

19. How The Factors Interact
• The water quality of this pond is now very poor.
• Excessive nutrients, poor circulation and low oxygen
levels.
• Mosquito and other insect populations breeding in
stagnant, algae covered surface water.
• What Can Be Done To Remedy This?

20. Solutions
• Mechanical
- Dredging
- Raking
• Expensive
• Treats symptoms, not
causes
• Temporary

21. Solutions - Chemical
• Most popular
• Quick
• Specific plant
elimination
• Promotes nutrient
cycling
• Accelerates O2
depletion
• Treats symptoms
• Does not improve water
quality

22. Solutions – Lake Dye
• UV Blocker
• Inhibits
Photosynthesis
• Aesthetic appeal

23. Solutions-Biological
• Weed Eating Fish – Triploid Grass Carp
• Create Wetlands to Absorb Nutrients Before
They Can Enter Pond
• Littoral Zone Plantings to Absorb Nutrients
Before Entering Pond
• Berms – Topological Relief to Prevent Run-off
Nutrients from Entering Pond

24. Littoral Zone Plantings

25. Solutions - Biological
• Bioaugmentation – Beneficial Bacteria
or Enzymes
• Benthic Zone (Pond Bottom) Weed Mats

26. Solutions - Aeration
• Helps Keep Three Contributing Factors; Temperature,
Nutrients and Oxygen in Balance
• Has No Harmful Side Effects and Naturally Supports
the Eco-System
• Attacks the Source of the Problem; Poor Water
Quality, thus Impeding Algal and Weed Growth,
Bottom Sludge Build-Up, Odors and Insect
Infestations

27. Aeration Tests
• To Prove Positive Effects, Two Simple, Cost Effective
Tests Can Be Performed
• Perform a Before and After Test
• Test in a True Stress Situation, After Dark or Before
Dawn on a Hot, Cloudy Day at 3’ and 10’ of Depth
• Use an O2 Monitor to Record DO Levels and
Temperature to Test Mixing
• Aerators Should Run For 72 Hours, Non-Stop, Before
Testing

28. Aerator Types
• Surface Spray
• Bottom Air Diffusion
• Mixers and Aspirators

29. Surface Spray
• Provide DO and Vertical
Circulation
• Most Effective in
Depths Less Than 12’
• OTR Exceeding 2lbs per
HP, per Hour
• Supplemental
Aesthetics

30. 1-5HP FLOATING FOUNTAIN AERATOR

31. Surface Spray Components
• Power Unit
• Float Assembly
• Control Panel
• Power Cable
• Total Components UL
Listing for Safety
• Options – Deep Water
Intake, Lights

32. VOLCANO ll

33. Conical Volcano

34. STANDARD HIGH VOLUME FLOW
(NO NOZZLE)

35. LAKEWOOD FULL FLOW

36. SANIBEL

37. PAR

38. MORE DECORATIVE
LESS AERATING

39. CROWN & GEYSER NOZZLE

40. CRYSTAL GEYSER NOZZLE

41. PRESTWICK

42. WIDE GEYSER NOZZLE

43. FIRESTONE

44. REFLECTION

45. SURFACE SPRAY ACCESSORIES
• NIGHT LIGHTING
• DEEP WATER INTAKE
• DIGITAL TIMERS
• CUSTOM LARGE
DEBRIS SCREENS
• INTERCHANGEABLE
NOZZLES

46. FOUNTAIN AERATOR ANCHORING/ MOORING
FIGURE 1 is most applicable for a smaller pond, or one that is easily accessible from two sides.
In a larger body of water or where vandalism is a concern, FIGURE 2 is the preferred method.

47. CELESTIAL FOUNTAINS
GEMINI AQUARIUS

48. CELESTIAL FOUNTAINS®
Pisces Libra

49. CELESTIAL FOUNTAINS
Taurus Leo

50. CELESTIAL FOUNTAINS
Aries Virgo

51. CELESTIAL FOUNTAINS

52. Sizing and Placement
• Rule of Thumb – 2HP
per acre (4045sqm)
• For Severe Problems &
Fountains – Add HP
• Place Unit or Units for
Maximum Zone of
Influence

53. Bottom Air Diffusion
• Compressed Air Driven
• Synergistic Micro-Bubble Diffuser Technology
• Superior De-Stratification and Aeration in
Deeper Depths (10 to 32feet) (3 to 9.75m)
• Unobtrusive, Natural Surface Water Display
• No Electrical or Moving Parts in Water

54. Air Diffusion System
• Compressor
• Diffusers
• Air Tubing

55. COMPRESSORS

56. FINE BUBBLE DIFFUSERS

57. Surface Boil Effect

58. Air Diffuser Sizing
• General Rule of Thumb – One Diffuser per ½
Acre in Depths of 4 to 11 feet (1.2 to 3.3m). In
Depths of 12 to 32 feet (3.6 to 9.75m), One
Diffuser per Acre.
• Increase Amount of Diffusers for Ponds with
Restricted Circulation and / or Severe
Nutrient Load Conditions

59. Mixers and Aspirators
• Create Directional Flow
• Surface or Bottom Mounted
• Horizontal Mixers Create Strong Flow
• Horizontal Aspirators Inject Atmospheric O2 into
Flow
• Excellent Cove and Shallow Water Movers
• Vertical Mixers for De-Stratification

60. HORIZONTAL ASPIRATOR/MIXER

61. HORIZONTAL MIXER FLOW

62. VERTICAL MIXER

63. MIXER / ASPIRATOR SIZING
• General Rule of Thumb – 3HP Per Acre (per 4045sqm) for
Horizontal Applications
• 1HP Per 4045sqm for Vertical Applications

64. Conclusion
What Causes Most Management Problems?
• High Nutrient Loading
• Lack of Circulation Leading to Thermal
Stratification
• Excessive Algal & Weed Growth
• Sludge Build-up
• Organic Digestion (Aerobic & Anaerobic)

65. Conclusion (cont’d)
• No One Solution / Method is the Complete
Answer
• Do the Things that Will Improve Water
Quality
• Aeration is the Foundation for a Healthy,
Balanced Pond

66. Aeration Will:
• Increase Dissolved Oxygen Levels
• Improve Circulation
• Help Control Nutrient Loading
• Decrease Chemical Use by Allowing
Them to Perform More Effectively

67. Develop A Management Program
• Which is Long Term in Scope
• Addresses the True Causes of the Problem
• Balances the Ecosystem
• Provides A Water Resource that Adds to Our
Environment Functionally and Aesthetically
for Years To Come

68. Fixed Base
Water Feature Fountains

69. Fixed Base
Water Feature Fountains

70. CUSTOM TYPES

72. PRODUCT POINTS
• Quality Warranties
– 1/2HP - 3 years
– 1-25HP - 3 years
– 1/2-1HP Compressors-1 year
– Electrical Panel Components-1 year
– AquaAir diffusers, tubing and cabinets - 5 years
• Industry’s only total component UL & cUL Listing
– Not just individual pieces, complete product assemblies
• Most competitive price points in its class
– Lowest propeller pump technology suggested prices
• Best delivery record
– Equipment there when you need it, up to 5HP shipped within 5 days
• Ease of installation
– Off the pallet or out of the box, 2 people-2 hours; up & running

73. New 7.5 & 10HP Masters Series

74. MASTER THE POWER AND BEAUTY OF WATER