A very popular question we get is, "how many hours do I run my pool pump each day?"
Usually, we tell pool owners that between 8 and 12 hours is a good rule of thumb. The next question is "when?"
Many people want to run their pool filter system only at night in order save on electricity during off-peak hours. That's not a bad idea, but it's not the best.
In an ideal world where cost wasn't an issue, running your pool pump 24 hours a day, 7 seven days each week from pool opening to closing, is the best way to care for your pool. Those folks who follow this routine have few if any water quality problems; instead they have a huge electric bill...
But there is a happy medium!
Considering that many in our government don't consider these rates high enough, we all want to conserve. Even President Obama has said, "Under my plan of a cap and trade system, electricity rates would necessarily skyrocket ..." I suppose so. Since 2003, the electricity rates in the United States have risen about 20 - 25%.
To be fair, most of western Europe has rates in the 0.20 to almost 0.40 USD range!
But let me show you how you can save some money AND have good water quality. Below you'll find my recommendations for running your pool. This should save you about 30% as a minimum on a monthly basis. By the way, this is the plan I use on my own pool.
The map below shows average RESIDENTIAL electrical rates by state as August 2010.
Image courtesy of ElectricChoice.com
Here's my typical pool pump running routine on a normal summer. Our family lives in Connecticut with some of the highest electric rates in the country. We usually open the pool about May 1 and close it about Columbus Day (mid October).
Essentially, I mix peak and off-peak running times together so that the water is almost never truly at rest. It takes about 4 hours of the pump being OFF for the water to become "still". You need to run the pool while the sun is out, that's when there's the most activity; whether it's birds flying overhead dropping stuff into the pool or people swimming and playing. Plus you also need to have your chemicals circulating, and you do want to have warm, sun-heated water circulating down to the colder area thereby warming the entire pool.
By the way, no matter what, USE A TIMER. The Timer will pay for itself in very little time, usually the first month or so. All I need to do is adjust my time clock trippers.
Ron's Pool Pump Running Plan:
Initial Opening: first 5 or 6 days, 24/7 (depending on what the water looks like at opening). The pool has been sitting still for over 6 months. I need to get my water balanced and starter chemicals circulating and winter biofilms disrupted.
Early & End of Season, minimal to no use: this would be from the end of that initial run until about mid-June and then again from late August to closing, when air and water temperatures are similar, mid to upper 70's, low 80's (degrees Fahrenheit).
7 Days, pool pump operating 8 hours daily:
Midnight to 3 am, ON.
3 am to 10 am, OFF.
10 am to 3 pm, ON.
3 pm to Midnight, OFF.
Pump runs for 5 hours during peak time, 3 hours off-peak. Pump is OFF for 14 hours.
Pool Season, normal to high use: roughly mid-June through the end of August (the beginning of the school year). Water temperatures are in the mid to upper 80's; air temperatures range from the mid 80's to low 90's.
7 Days, pool pump operating 12 hours daily:
Midnight to 4 am, ON.
4 am to 8 am, OFF.
8 am to 12 Noon, ON.
12 noon to 4 pm, OFF
4 pm to 8 pm, ON
8 pm to Midnight, OFF.
Pump runs for 8 hours during peak time, 4 hours off-peak. Pump is OFF for 12 hours.
That's how I maintain a crystal clear pool. When the water does cloud up, usually because of a very heavy rain storm (one or more inches of rain water) or big party (lots of people with food and drink), then I'll run the pump 24/7 until it clears; that's typically no longer than one day.
If you live in a part of the country where the pool stays open all year round, but it's too cold to use, I've got a few more timing tips for you. Click here for that information.
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