How does pool skimmer work
William Taylor
Published Apr 01, 2026
Pool skimmers are designed to draw water from the surface and suck it through the pool’s filtration system. About the top 1/8 inch of water is drawn into the skimmer helping remove the contaminants and debris such as sunscreen, hair and leaves from the pool before they sink to the bottom.
Should pool skimmers be on all the time?
Although it’s generally recommended that all the pool water undergo filtration every 24 hours, the pump does not need to run all the time. A proactive, productive and energy-saving maintenance activity is to remove the debris floating on the pool surface with a hand-held skimmer.
Why are there 2 holes in my pool skimmer?
A skimmer is a necessary element of keeping a pool clean. The skimmer sits at the waterline and catches leaves, bugs and trash so they do not clog the filter. Skimmers with a second hole help keep the pump from running dry if the water level is unstable.
How often should I run my pool skimmer?
No matter what kind of filter you have, it only works if water moves through it. That’s how the filter is able to capture debris and bacteria. To keep all the water in the pool clean and clear, it must run through the filter system at least once a day.What happens if pool water is above skimmer?
If the water level is too high the debris floating next to the opening may pass by without being pulled into the skimmer. However if the water level is too low it may cause the skimmer to suck air into the system. If this happens you may run the risk of burning up your pool pumps motor.
How do I turn my pool skimmer on?
To turn on your skimmer valves, slowly make the handle go in line with the pipe. Now, this is the correct position for both skimmer(s) and floor drains to be bringing water to the filter pump.
Why does my pool skimmer have no suction?
When your pool skimmer has no suction, the cause is most likely a blockage. This can put the entire filtration system of the pool into question, as there will be low water pressure.
Do pool pumps use a lot of electricity?
Outside of the air conditioner, the pool pump is the largest electricity consumer in the average pool-containing home. According to the study, at the national average of 11.8 cents per KWh, a pool pump alone can add as much as $300 a year to an electric bill.Is it OK to put chlorine tablets in the skimmer?
Never put chlorine tablets into the skimmer baskets of your pool. … High levels of chlorine close to the pool pump, pool filter, and pool heater can damage the equipment. The pool heater is especially susceptible to having the copper in the heater get into the pool and ruin the pool plaster.
Does it hurt to run pool pump 24 hours a day?Nevertheless, most pool cleaning professionals would advise against running a pool pump for more than 8 hours a day. For pool pumps with D.E. filters, operating hours for normal weather and climate conditions tend to be anywhere from between 7 to 8 hours if you want to ensure proper filtration.
Article first time published onShould skimmer valve be open or closed?
For the cleaner to operate at maximum efficiency, only the skimmer and cleaner valves should be open. No other valves should be open. So it is either main drain+skimmer or cleaner+skimmer. Never main drain+skimmer+cleaner all open at the same time.
Should I Use main drain or skimmer?
Skimmer Vs. Drain. If the pool receives a lot of leaves and other debris, more suction may be required at the skimmer than the main drain to adequately strain debris floating on the surface. Conversely, if dirt on the bottom of the pool is the principal contaminant, more suction is required at the main drain.
How much does it cost to replace pool skimmer?
A skimmer should cost between $50 and $200, depending on the skimmer’s construction, your pool type and the skimmer’s features. Install the new skimmer by connecting it to the existing pool plumbing. Remove the coping, tile or whatever other material surrounds the perimeter of your skimmer mouth.
Can pool run with water over the skimmer?
Your pool skimmer will help filter out some debris and insects that enter your pool, but only if the water level isn’t above the skimmer opening. If the skimmer is completely covered by water, then it won’t work properly. … Maintaining your pool before a storm will help alleviate any problems that a storm might cause.
Is it bad for a pool to be too full?
The quick answer is no. You don’t need to drain your pool, as there is no risk to your pool by it being full. The only thing you lose with a pool filled to the rim is your skimmer’s surface cleaning action. Overall, it still draws water and the equipment is just fine.
Can I drain my saltwater pool on my lawn?
Unless you have highly salt-tolerant yard plants, discharging saltwater into the yard may cause extensive damage; the soil retains the salts suspended in the water runoff. It is possible, however, to drain a saltwater pool into the yard using planned draining intervals.
How much suction should a skimmer have?
You should aim for a water level about 1/2 to 2/3 up the opening of the skimmer. Too low and you start to get gurgling sounds which are telling you that your pump is working way too hard at trying to keep the water flowing.
Why does my pool pump loses suction?
CLOGGED IMPELLER (Low PSI) – This problem is often overlooked. If the impeller becomes clogged with debris, water can’t rotate out the sides of the impeller. This decreases suction which reduces water flow through the pump. … See our guide on “How To Clean Out a Pool Pump Impeller”.
What PSI should my pool filter run at?
The pool filter pressure should be steady, operating in a range of +/- 10 psi. When it’s outside this range, very low or very high, then you know that something’s wrong. Some gauges allow you to set the clean and dirty range, or you can write it on the filter tank with a marker.
What is the black stuff in my pool skimmer?
Yet I continue to find a sticky, oily black substance that rings the inside of both skimmers every week or so. … Answer: Simple “problem” with a simple solution: Human oils and suntan lotion are being pulled into the skimmer and then slowly attaching to the sides.
What do you use skimmer for?
The skimmer is used to skim off the foam that forms on the surface of cooking liquid. It can also be used to drain foods that are prepared in liquid.
What does a pool skimmer box do?
Pool skimmers are designed to draw water from the surface and suck it through the pool’s filtration system. About the top 1/8 inch of water is drawn into the skimmer helping remove the contaminants and debris such as sunscreen, hair and leaves from the pool before they sink to the bottom.
How many skimmers does a pool need?
How many skimmers do I need? The Association of Pool and Spa Professionals (APSP) advises that there should be a minimum of one skimmer per 400 sq. ft. of pool surface area.
Do you need a skimmer for above-ground pool?
Because above-ground pools have thin walls, floating pool skimmers are most often used, as are units that hang on the pool’s edge. To keep skimmers for above- and in-ground pools working properly, try to clean out the skimmer basket daily during swim season.
Can I add shock to the skimmer?
Never pour pool shock into the skimmer, pre-dissolve for use in vinyl liner pools. When broadcasting shock across the surface, be mindful of the wind direction. Brush the pool after shocking, and filter the water for at least 8 hours afterward.
How many pounds of shock do I need for a 30000 gallon pool?
Typically for granular shock, you’ll need one pound for every 10,000 to 13,500 gallons of pool water. With over 8 million residential swimming pools across the US ranging from 5 thousand gallons to over 30 thousand gallons, the amount of shock you need to treat a swimming pool isn’t a one-size-fits-all answer.
Is liquid pool shock the same as chlorine?
Are chlorine and shock the same thing? SKIMMER NOTES: No. Chlorine and shock are not the same thing. Shock has a more intense chemical strength than the traditional chlorine sanitizers, and it also differs in how you should apply it to your swimming pool.
Why is my electric bill so high?
One of the main reasons your electric bill may be high is that you leave your appliances or electronics plugged in whether you’re using them or not. … The problem is, these devices are sitting idle, sucking electricity out of your home while waiting for a command from you, or waiting for a scheduled task to run.
How many hours a day should I run my pool pump?
Overall, the lessons learned today is you should run your pool pump an average 8 hours a day to properly circulate and clean your water. The pump should push your entire pool in gallons in this 8 hour period of time. Residential pool water only needs to be turned over once daily to have proper filtration.
Should I run my pool pump at night?
It’s always best to run the pool pump during the hottest times of the day. The sun is one of the causes of chlorine depletion in your pool. … If you run your pump during the night, then the sun has all day to attack the chlorine that’s standing still in your pool. That can cause algae fast!
Do you run pool pump while raining?
We recommend that our customers run their pumps rain or shine UNLESS we have an electrical storm. In that case, lightning could strike an outside circuit, which could damage your pump and other equipment. If you’re worried about lightening, turn the pump off or shut off the breaker.