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An In Depth Analysis Of How Pool Pumps Work

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The purpose of an electric motor-powered pump is to create hydraulic flow and pressure required in making water circulate through a plumbing system of a pool or spa and other related equipment. The pump is practically the heart of the entire spa or pool system in which it is connected to. All pools and spas contain pumps which is one of the most important pieces of equipment in the circulation system regardless of the type or size of the pool.

In choosing the pump most suited for your pool, you would need to know the actual volume of the pool in terms in the amount of water it can hold and the required flow rate in relation to turnover time. Moreover, find out what is the total dynamic head of the system otherwise known as the friction loss brought about by the fittings, equipment, and piping.

You would have to use some basic geometry to estimate the volume of the pool. Find out the general dimensions of the pool. The dimensions do not have to be absolutely accurate especially if you do not know the actual specs. Close estimates would do just fine, although make sure that you do not under estimate. To make it simple, set your measurements in tenths of feet in order for your calculations to be in simple decimal form.

On exactly how the pool pumps circulate the water, the process actually involves several steps. Water is first drawn from the pool via a hose known as the influent line. This line connects to the pump where water passes through a strainer basket going to the impeller. The impeller is a rotating pump connected to the electric motor shaft that generates centrifugal force through spinning. Centrifugal force is essentially the outward movement of the water brought as a result by the rotation of the impellers. This is the force that brings out water through the effluent line moving towards another equipment which is usually a pool filter.

Normally, you can buy pool pumps in either Watts or “horsepower” (Hp). The higher the pump’s horsepower is, the more amount of water it can circulate – which also means higher performance. A pump’s performance is commonly measured in liters per minute (L/min). You should also check the flow rate of the model you are purchasing because two different pumps with similar wattage or horsepower may actually produce varying volume per minute rate.

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