Quick Calculation For A Pool Dosing Pump

Published On December 20, 2020 | By Danny White | Home Improvement

When you have a pool dosing pump job, we will calculate which dosing pump we need to dose Chlorine or regulate PH in a swimming pool based on experience, without mathematical formulas.

When we look for the chlorine or PH dosing pump for the pool, we do not look for a pump that gives us an exact flow.

Calculating the amount of liquid treatment we need in a given pool can be quite complex. We must bear in mind, for example, that the optimal level of Chlorine according to the legislation is not the same in one place as in another. Each state has its criteria, and therefore, this data, like many others involved, will be variable.

But we must also bear in mind that we will not always need the pump to put the same amount of treatment liquid in the pool because we will not always start from the same situation. It is not the same that there is 0.5 ppm of Chlorine in the pool right now that we have 1 ppm (ppm, particles per million).

Therefore, the objective of the calculations we will do is to determine which pump we will need. In a pool of specific dimensions (this is a fixed value), the PH or Chlorine values ​​remain within particular parameters.

How much Chlorine or what PH level should the Pool have?

As has already been said, this may vary in terms of legislation, but these values ​​will not be far from between 0.8 – 1.5 ppm in the case of Chlorine, and 7.2 – 7.6 in that of PH.

What Data Do We Need To Collect To Make The Calculation?

We are going from single data; the volume of water in the pool we want to treat. If you need to know how to calculate this volume, you can consult the other blog articles available on the internet.

What Dosing Pump Would My Pool Carry?

As we have already said, this classification or calculation is made from experience. In 99.9% of cases, the following is sufficient:

  • A pool of up to 150 m3 for a PH pump of 2 Liters/Hour, for Chlorine 5 Liters / Hour.
  • A pool of up to 500 m3 for PH pump of 5 Liters/Hour, for Chlorine 10 Liters / Hour.
  • A pool of more than 500 m3 for a PH pump of 10 Liters/Hour, for Chlorine 20 Liters/Hour.

So that’s it?

Not entirely, with this, we have the flow of the pump, but also you will need another parameter to choose the one you need; the pressure.

When choosing the appropriate pump is the working pressure of the installation since the pump will have to overcome this pressure to put the product we want in the installation.

The characteristics that the manufacturer provides on them will have to ensure that it gives the proper flow to the size of your pool and that it can do so at the drains and pipes, and also pressure that it is going to work with.

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