Things to Know About Your Swimming Pool/Spa Filter

There is a formula for anything that you need to accomplish with regards to swimming pools, spas and hot tubs. Whether it’s a chemical adjustment or a piece of equipment that you need to replace and you want to be sure it’s the right size.

This article will help you better understand your filter’s ability to remove matter from your pool’s water.

 The Filter type, Filter Rate, Effectiveness and Media Life of each of the 3 types of pool filters is shown below.

Filter Media- Sand & Gravel:

Filter Rate= 1.5-5 GPM/SqFt

Effectiveness: 50-100 Microns

Media Life: Top Layer = Yearly. Entire Media = 5-10 years.

Filter Media- High Rate Sand

Filter Rate= 12-20 GPM/SqFt

Effectiveness= 25 Microns (clean filter)

Media Life= Top few inches= Yearly. Entire Media = 5-10 years.

Filter Media- D.E.

Filter Rate= 1-2 GPM/SqFt

Effectiveness= 1-2 Microns

Media Life= 2 months

Filter Media- Cartridge

Filter Rate= .0375- 1.0 GPM/SqFt

Effectiveness= 15 microns

Media Life= 6-36 months

Article by: Jef Kirchmaier, CPO, CPT, AEA, WQM

                 

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