Pool Pump Sizing

If your pool filter is too small for the pump there will be additional strain on the pump motor as it tries to push water through and encounters resistance at the filter.

Pool pump sizing.

Measure the shallow end depth. Below we ll run through how to easily figure it out step by step and choose your pool pump confidently. Water pumps of 1 1 5 and 2 horsepower are very common and for the average size pool very oversized. Length x width x average depth x 7 5 pool capacity in gallons oval.

There are a few primary factors that go into finding the right size pool pump. Multiply the pump vacuum by 1 13 to measure resistance before the pump add the two together to compute the total resistance in the system. Pool volume in gallons turnover rate in minutes flow rate. Length x width x average depth x 6 9 pool capacity in gallons round.

Now most pool owners don t have a vacuum gauge installed before the pump. 22 5 60 gpm or flow rate range. Determine your flow rate range. You might think bigger is better in terms of pump size but a pump that is too big can cause serious problems.

This will eventually burn out the pump motor and your filtration will also be compromised. Measure the deep end depth. The first step in sizing your pool is to know the volume of water in your pool which is the average depth. From industry standard single speed pumps to energy efficient variable speed pumps all delivering powerful reliable performance.

Length x width x average depth x 5 9 pool capacity in gallons free form. We can see that for our example pool we can determine the following. Calculate minimum flow rate. Divide the pool into the above shapes then add together.

You have now completed your pool pump sizing and will be able to purchase a pool pump that will work efficiently and safely with your pool system. 50 60 tdh or feet of head. Determine maximum flow rate. We will use that gpm to calculate our pool s feet of head.

Calculate the volume of your pool. An ideal turnover time is 8 10 hours. The size of your pool filter is directly related to the pool pump you have selected. How to determine gallonage.

Hayward has the broadest lineup of pool pumps in the industry assuring you will have the perfect pump for your pool. Oversizing pumps have become such an issue that the state of california a big pool state recently enacted a law to control how big of a pump could be placed in a swimming pool. Use this formula to determine your turnover rate. How to figure out what pool pump size you need.

If you want to turn over your 20 000 gallons once in 5 hours you will need to average at least 67 gallons per minute gpm.