What to Consider When Buying a Pool Pump?  

by Pool Builders on 03-29-2011 in Articles

The pool is an object of desire for its owners. It is not just an accessory for the home, but also a necessity for every occasion. Swimming pool is the place where family, friends and children can share and enjoy.
Owning a pool does not stop with filling it with water. The pools are big investment that requires maintenance. A pool pump is an important part of a pool filter water and prevent stagnation. Standing water can encourage algae growth and makes the water green.

Pool pumps comes varied sizes and power. The size and type of swimming pool pumps can make a big difference between the energy and you can save on fuel costs. What should you consider when purchasing a new pool pump?

1. Size of the swimming pool. The size of the pool will determine the amount of water it can support. After measuring the amount of water the pool can hold, the owner can calculate the flow rate of the pool. Flow rate is the amount of water that can be circulated within a specific period of time and the unit of measure is gallons per minute or gpm.

Water on a typical swimming pool needs to be circulated every 4-6 hours at least once or twice a day. To measure the flow, the pool owner must decide how frequent you want the water to be circulated.

For instance, an owner a pool that holds 12,970 gallons of water decides that he wants to circulate his pool every six hours. To compute, divide the total gallons of water by six. That would be equivalent to 2,162 gallons per hour to circulate. Then divide that figure by 60 (the number of minutes in an hour) to find the gallons per minute. In this example, the flow rate of about 36 gpm. In this example, the owner must purchase a pump with 36 gpm. If you're in doubt, you can contact your contractor to do the computation and recommend the best pool pump for you.

2. Size of the pump. Picking a pump that is too large, may cause damage
to plumbing and equipment. It can also lead to cavitation, which can damage the pump.

Cavitation is the formation of bubbles in water and occurs when water is intensely vibrated. As the bubbles pop, shock waves are created within the pump that not only make noise but also burst with enough force to damage the impeller and other pump parts.

Cavitation occurs when the flow capacity of the pump is more than the supply of water available. The vacuum created within the pump is enough to literally suck the oxygen out of the water, causing bubbles to form. The condition can occur when you install a pump that is too large for the suction side of the recirculation system or when there is an excessively long suction line.

A large pump can also create excess flow, which can damage the pipe system.

3. Power of the pump. Pool owners usually want as much power as possible from their pump, but it can also be a disadvantage. Too powerful a pump can prevent proper filtration to occur. An overly powerful pump can also damage the pool filter and heater. High powered pump installed in the wrong pool could even blow the pipes or fittings together. Some of these issues could cause more damage and bring more costs than savings.

4. Features of existing pool. The characteristics of the pump should also be consistent with the characteristics of the existing pool. The energy flow and pump head are the two factors to all pool buyers should consider when purchasing pool pumps. It is always advisable to choose the pump with the power that can support other existing functions in the pool. A pump with an average power will be ideal for a backyard pool. A pump with an average power can save on energy.

5. Available space. The available space around the pool must also be taken into account before purchasing a pool pump. An indoor pool has a limited space so the ideal size of the pool pump must be small or medium size. For an outdoor swimming pool, a larger pump is ideal because of adequate area around it.

6. And last but not least, the pool owners may also thinking about getting a pump with variable speed. This type of pump can be set to operate at different speeds and capacities.
Choosing the right pool pump for your pool, you not only save money on energy consumption, but will extend the life of your pool pump and give you an excellent return on your investment.

Happy swimming season!Pool Pumps Hayward Team. Team

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