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why does my pool pump keep losing suction

by Soledad Treutel Published 3 years ago Updated 2 years ago
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A Plumbing Blockage Will Cause A Pool Pump To Lose Pressure

  1. you vacuumed the pool using the pools pump as your vacuum and you sucked up something just a little too big,
  2. the skimmer basket was missing and a foreign object found its way to the skimmer and in turn the plumbing.

There is an air leak (suction leak) in the underground pipe between the weir (skimmer box) and the pump, causing the swimming pool pump to lose pressure. The connector fitting at the weir or the pump could be loose or perished. The shaft seal in the pump could be cracked and leaking. The filter sand could be clogged.Dec 26, 2020

Full Answer

What does it mean when a pool pump stops working?

The pool pump suction is the lower limit of the water flow inside the pump. It means if the flow is too low, the pressure in the pipe will be too low and the motor may not start. When an impeller pump stops working it’s usually due to low suction pressure.

What factors affect swimming pool suction?

The pool suction is influenced by several factors, including the size of the pool pump, the grade of sand in the sand filter, the quality of water in your pool, the shape of your plumbing distribution system, pump pressure, and water returns.

Why is the suction on my pool skimmer weak?

The suction from the skimmer is what pulls water from the pool into the filter, which then filters the harmful material from the water. If you find that your skimmer suction is weak this could be due to a number of different issues, including clogs in the jets or a faulty pump.

Why is my pool pump losing Prime from cavitation?

Pump loses prime from cavitation - A pool pump losing prime from cavitation will have the distinction of losing and then catching prime over and over on a repeating frequency. In this situation the pump is attempting to draw water faster than the pipe can provide water.

Why my pool pump has low suction?

How to fix the skimmer suction weak problem?

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What causes a pool pump to lose suction?

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.

Why is my pool pump not holding pressure?

It could be something blocking it, a dirty pool filter, or too much air in the system. If there's something blocking your pump's suction, check your filter gauge. If it's 10psi above the normal reading, clean your filter. This will reduce pressure and reset your pump's flow.

How do you fix low pool suction?

Solution. Clean out your impeller. If the problem persists, examine your pool basket – it could be broken, and this is what could be causing debris to repeatedly block the impeller. Since the impeller is what maintains suction, it needs to be at the top of your list for regular maintenance checks.

Why does my filter keep losing pressure?

It could be a clogged pump basket, impeller, pipe, or skimmer basket. It could also be a closed or broken valve before the pump. In some cases, the pump may have an air leak and is drawing in more air than water. This can reduce filter pressure (and filtration ability).

How do you know if your pool impeller is clogged?

How to Tell if Your Pump Impeller is CloggedThe pump is making cavitation noises – loud, low grinding noise.The filter pressure is about half of what it normally reads.The pump basket doesn't fill up with water (as seen through a clear lid).The water in pump is slowly moving, or swirling.More items...•

How do I know if my pool filter is clogged?

Signs Your Pool Filter Is DirtyWater quality issues. ... You backwash more frequently. ... Sudden increase or decrease in water pressure. ... Fuzzy cartridge. ... Cracked or crushed cartridges. ... How to fix a dirty filter.

How do I find a leak in my pool suction?

While the pump is off, lather the joints, seams, and any other parts of the suction-side plumbing with an evenly applied layer of shaving cream. Turn on the pump. Inspect the shaving cream covered dimpling. These dimples are signs the cream is being pulled in by an air leak.

How do I test my pool pump suction?

Test for Suction Side Air LeaksPour small amount or larger dollop of dish soap into a cup.Fill the cup three-quarters of the way full with water.Agitate water to create a good amount of foamy bubbles.With the pump running, scoop out foam from the cup and hold it to any area suspected plumbing leaks.

How do you unclog a pool pump impeller?

1:022:19How To: Clean Out A Pool Pump Impeller - YouTubeYouTubeStart of suggested clipEnd of suggested clipStep 3 clean out and power insert the wire slowly into the opening leading to the empower. Until itMoreStep 3 clean out and power insert the wire slowly into the opening leading to the empower. Until it stops. Then fish around for debris repeatedly pull out and clean off the wire.

Why won't my pool pump hold a prime?

0:244:12How To: Determine Why A Pool Pump Won't Prime - YouTubeYouTubeStart of suggested clipEnd of suggested clipYour pump will not be able to prime if there is not enough water in the pump strainer basket. OpenMoreYour pump will not be able to prime if there is not enough water in the pump strainer basket. Open the strainer cover and fill the strainer basket.

What PSI should my pool pump be at?

Normal pressure for most pools is between 10 and 25 PSI (70-170 kPa). The pressure for filtration systems varies depending on the type of filter, the size of the lines, the pump and other pool equipment. What is this? High pressure is considered to be 5-10 PSI or above the usual pressure reading.

Can dirty pool filter cause low pressure?

Cause: Dirty or full skimmer or pool pump baskets If your skimmer basket or pool pump basket is full of debris, then it follows that water flow to your pump will be restricted, and in turn cause low water flow and low water pressure.

What PSI should a pool pump run at?

For pool owners, the normal range is around 10 PSI; check your owner's manual for more information. Once you know what's normal for your filter, get in the habit of checking the pressure gauge once a week as part of your pool maintenance routine.

How do I find a leak in my pool pump?

0:383:28How To: Identify and Correct Air Leaks - YouTubeYouTubeStart of suggested clipEnd of suggested clipCheck the strainer pot of your pump if you see significant air bubbles moving through the strainerMoreCheck the strainer pot of your pump if you see significant air bubbles moving through the strainer pod.

Why are the jets in my pool weak?

The most common reason for weak jets is an air leak. An air leak would come from the suction side of the system. This would be the area between the skimmer and the pump. One way to determine if you have an air leak is by looking for air bubbles coming out of the return jets.

How do I increase the pressure in my pool filter?

With a few simple remedies you can restore pressure to its normal range.Fill the water up to the proper level with a garden hose. Pool pressure is affected by low water levels. ... Clean out the skimmer basket of the pool. ... Turn the filter off and open the pool pump. ... Inspect pool hoses for cracks and leaks.

pool vacuum has no suction | Trouble Free Pool

Are there any bubbles in the pump basket? You probably have a suction side leak. The basket lid o-ring. Inspect, clean and lube it well. The pump drain plugs.

Pool Skimmer Not Suctioning? (Possible Causes & Fixes)

Pool Skimmer Not Getting Enough Suction. Later on, we’ll discuss what to do if you’re dealing with a clogged pipe or skimmer system. One thing I wanted to touch on that may be causing a lack of suction could be the water pressure.Below is a guide to help you get the water pressure to the levels it should be and increase suction power.. Steps to Get The Water Pressure to The Right Level

What happens when a pool pump loses prime?

In this situation the pump is attempting to draw water faster than the pipe can provide water.

Why does my pool pump overheat?

Commonly pool pumps can overheat during the heat of the day which can cause the internal thermal disconnect to trip, can cause the electrical breaker to trip, or can cause increased resistance in the electrical connections which drop voltage and deliver lower voltages to the pump temporarily.

How does a pool pump lose prime?

Pool pump loses prime from dirty filter - In the above example you learned how deadheading a pump with a closed valve is dangerous and causes the pump to lose prime. In the same way a dirty filter can also cause your pool pump to lose prime. As the filter media catches debris the amount of debris and organic material will build up. Eventually the flow will become restricted and the pressure in the system along with the resistance to flow increases. In fact this is exactly how you are supposed to know when it is time to clean your pool filter. Some pool owners use a regularly timed schedule for this service but this might mean you are cleaning too much or not often enough. Using filter pressure to determine when the filter is dirty is the optimum method, and typically 7 PSI above the clean operation pressure of the system is the point at which a filter cleaning service should be performed. If a pool system were to run unrestricted and the filter media were to become dirty, and then eventually so dirty that the pump could not push water through it, the end symptom to the pool owner (aside from the possibility of the filter exploding) is that the pump would appear to have lost prime for some reason. A quick potential check is to bypass the filter to see if this allows the pump to run and prime better. For some filters like sand filters this will be as easy as setting the filter head setting to recirculate or whirlpool which effectively bypasses the entire tank. If you recently rebuilt your filter and now the pump is losing prime, or will not prime, you should be sure that you have plumbed the intake and outlet ports for the filter correctly and be sure that the filter elements are seated properly. Any pool owner working on or with a filter, especially a split tank filter, needs to be aware of the danger. Never attempt to tighten or work on a filter when the pool system is running.

Why does a skimmer need a second to drain?

Since pumps are so powerful and move so much water it takes only a second for the pump to drain the skimmer dry or at least create a vortex whirlpool that snakes to the water surface and allows the pump to take a draw of air.

How long is the suction pipe from a pool pump?

In effect the suction pipe from your pump to your pool might be 20' long , but plugging in your vacuum hose can make the total distance now 20' plus the length of vacuum hose itself. If you have a pump that is undersized or perhaps nearing the end of service the additional pull may be simply too much for it.

What happens if a pool filter is dirty?

If a pool system were to run unrestricted and the filter media were to become dirty, and then eventually so dirty that the pump could not push water through it, the end symptom to the pool owner (aside from the possibility of the filter exploding) is that the pump would appear to have lost prime for some reason.

What happens when you take your finger off the end of a straw?

However the moment you take your finger off the end and lose the vacuum the water immediately drains from the straw. When a pump momentarily takes a pull of air, not water, this is like taking your finger off the end of the straw in that the pump will immediately lose prime.

Why my pool pump has low suction?

Why my pool pump has low suction. I have a sand filter but the skimmer is almost never pumping sand, my pool is very clean and no debris is present. I can’t find any of any kind of suction problems like a defective or broken skimmer. The pump appears to be working fine and clean. I’ve checked all the plumbing and pump connections and they look fine as well.

How to fix the skimmer suction weak problem?

The suction from the skimmer is what pulls water from the pool into the filter, which then filters the harmful material from the water.

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1.Videos of Why Does my Pool Pump Keep Losing Suction

Url:/videos/search?q=why+does+my+pool+pump+keep+losing+suction&qpvt=why+does+my+pool+pump+keep+losing+suction&FORM=VDRE

33 hours ago  · It means if the flow is too low, the pressure in the pipe will be too low and the motor may not start. When an impeller pump stops working it’s usually due to low suction pressure. If you don’t check your pump regularly, at some point you will notice that your motor is not …

2.Why my pool pump has low suction? - SwimmingPool …

Url:https://swimmingpoola2z.com/why-my-pool-pump-has-low-suction/

26 hours ago  · If your pump is losing suction, watch this video to learn how to detect and fix some possible air leaks within the pumping system of your pool. If your pump is losing suction, …

3.How To Fix A Pool Pump That Is Not Priming (LOSING …

Url:https://www.youtube.com/watch?v=DySWSH71H08

31 hours ago  · Your pool pump might be losing pressure due to a clogged filter basket or a suction leak. Try cleaning out any debris stuck in the pump basket, inspect the system manually for …

4.Why is my pool pump losing suction? - Quora

Url:https://www.quora.com/Why-is-my-pool-pump-losing-suction

31 hours ago  · Why is my pool pump losing suction? CLOGGED IMPELLER (Low PSI) – This problem is often overlooked. If the impeller becomes clogged with debris, water can’t rotate out …

5.How To Troubleshoot Loss Of Suction On A Swimming …

Url:https://www.youtube.com/watch?v=JFmmblgEhoU

9 hours ago Common Causes of Damage to Swimming Pool Pumps. Running the Pump without Water. Swimming pool pumps should never operate without water. Water level of Pool is to Low. A …

6.Why Does My Pool Pump Lose Prime? - Swimming Pool …

Url:https://www.swimmingpoolsteve.com/pages/loses-prime.html

2 hours ago  · If the vacuum on your swimming pool keeps losing suction this video will help you to troubleshoot a few common things that may cause this problem. These swim...

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