search.noResults

search.searching

dataCollection.invalidEmail
note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
TECHNICAL


Otterbine’s Fractional can be relied upon to keep the ecosystem of any smaller area of water in perfect balance thanks to its ability to transfer an impressive 1kg/2.2lbs of oxygen per hp/hr and its pumping rate of 115m3/ph. Lewis Mattholie, deputy greenkeeper at Brickendon Grange Golf Club, says of the five-in-one aerating system seen here: “The water quality has vastly improved. Gone is the problem of stagnating and smelling water.”


Any manufacturer that is serious about helping its customers keep their lake or ponds aquatic ecosystem balanced and clean will happily provide you with OTR test results for its products





water) and, as such, oxidative stress becomes a real issue. When placed under oxidative stress caused by an imbalance of harmful pollutants in the water, plants and aquatic life struggle to counteract or detoxify the harmful effects of this pollution. This can accelerate the natural process of anaerobic digestion, whereby bacteria is used to break down organic and biological waste into carbon dioxide, methane and water. Although anaerobic digestion is a natural occurrence, the process reduces the oxygen levels in the water. When sped up by chemicals and pollution, if adequate oxygen is not being added to the water to compensate, it can lead to a build-up of harmful bacteria and hydrogen sulphide as well as causing unpleasant ‘pond sludge’ and odour. This causes harm to other life in the environment, starting with the beneficial bacteria. This is why supplemental aeration is so vitally important. With the right aerating system, preventing this build-up in your water body is made simple.


How do you find the best aerating product?


Reg Varney, Otterbine international region manager


138 PC April/May 2019


Many groundsmen are faced with water management issues when it comes to their lakes, ponds and reservoirs. Having to learn about the methods that have been determined to be the most effective and practical means of preventing or reducing non-point source pollution (pollution not confined to a single identifiable source) to help achieve water quality goals, can be an


arduous task and hard to get your head around.


With a multitude of companies entering the aeration market, it can be hard to differentiate between those with the scientific knowledge to honestly advise potential customers and those interested only in the sale. Be careful of those who may ‘muddy the water’ slightly to gain a competitive advantage. Regardless of the type of aeration system offered, the name of the process is the same; aeration. Putting air (oxygen) into the water. But how can a person determine how much oxygen an aeration product puts into the water? Not enough and the upset in the balance brings negative effects soon after, so it’s important to get it right.


The appliance of science


This is where science provides the answer. The scientific measure of an aerator’s capability to supply a lake with oxygen is its Oxygen Transfer Rate (OTR). This now industry standard measure was created by the American Society of Civil Engineers after they began developing test protocols and parameters in 1977 to determine an aerators OTR, eventually completing and finalising the tests in 1984. A recognised organisation used across multiple industries and referred to for important data, the American Society of Civil Engineers ‘Measurement of Oxygen Transfer in Clean Water’ has been widely regarded as the gold standard for an aerator’s OTR. When looking for the right aerator for your water body, it’s always worth


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111  |  Page 112  |  Page 113  |  Page 114  |  Page 115  |  Page 116  |  Page 117  |  Page 118  |  Page 119  |  Page 120  |  Page 121  |  Page 122  |  Page 123  |  Page 124  |  Page 125  |  Page 126  |  Page 127  |  Page 128  |  Page 129  |  Page 130  |  Page 131  |  Page 132  |  Page 133  |  Page 134  |  Page 135  |  Page 136  |  Page 137  |  Page 138  |  Page 139  |  Page 140  |  Page 141  |  Page 142  |  Page 143  |  Page 144  |  Page 145  |  Page 146  |  Page 147  |  Page 148  |  Page 149  |  Page 150  |  Page 151  |  Page 152  |  Page 153  |  Page 154  |  Page 155  |  Page 156  |  Page 157  |  Page 158  |  Page 159  |  Page 160  |  Page 161  |  Page 162  |  Page 163  |  Page 164