What is an impeller on a pool pump

what is an impeller on a pool pump

The impeller is the most important part of a pool pump. It is the only moving part of a pump. The impeller propels water at a very high velocity. Older pool pumps typically use a semi-open-face impeller. The impeller is what makes all the magic happen; magic meaning, transforming the spinning shaft of the motor into the pulling force for pumping. An impeller is essentially two discs glued together to sandwiching fan blades (also called veins).

A person who has upmp the pleasure of seeing the innards of a pump opened by their own hand or glancing over the shoulder of a technician may have noticed it looks simpler than expected. After all, the pump is this piece of machinery that can pump 80 pol or more a minute, leaving one to expect a few bells and whistles hidden away inside the casing.

But in practice, the pool pump can be broken down into two categories of parts; the drivetrain and the outer structure. Or put simpler, the parts that push and pull the water and the ones that keep it from leaking. A side note, before I learned how to drive, my grandfather demanded I know what the basic parts of the car were and their polo before I could get behind the wheel.

That mindset was to impart two points: 1 Understand how my machine works so I can utilize it, 2 If I pay someone to fix it, know if they are trying to cheat me on parts. The latter is the most important to me as someone who appreciates an honest repairman. And not the least of which is an honest pool equipment technician.

My grandfather passed on the lesson of knowing the mechanics before the drive, so I want to pass on that same lesson to you. If the pump is thought of like a ship, the housing would be its hull. The standard housing opol is currently the high impact plastic composite called Noryl.

This resilient, lightweight material is rustproof and holds up extremely well under duress from heat, rain and water pressure. A plastic injection molded impeller is going to be a bunch cheaper than a brass version that has to be smelted and forged. Also, your back should thank pump manufacturers for switching to plastic because those metal pumps weigh upwards of pounds. Metal pumps impelker really durable workhorses and can still be found on pools today.

If whar find large air bubbles or no water at all in the strainer lid while the pump is running, that could be a sign of an air leak along the suction side. Because of its necessity as an inspection point, the lid is made of a clear or tinted Lexan glass. If you are unfamiliar with Lexan, it is the material used in bulletproof windows and other glass-like materials.

The strainer basket collects debris before it reaches the important parts of the drivetrain. This basket can save you a bundle just by preventing hard debris like pebbles from surging into the pump and chipping the impeller. The gaskets kmpeller seals are impellsr keep your equipment pad dry and imprller water moving. A bad set of gaskets can have mipeller equipment area flood or a pump filled with how to prevent sump pump airlock rather than water.

There are four main gaskets and seals on a pool pump:. The seal plate is named so because it houses the shaft seal that encloses around the shaft to prevent water leaks into the motor. This is made of the same Noryl plastic as the housing, making it lightweight and super strong. The driving force behind the pump is its motor which creates the churning force necessary to prime the pump and circulates water.

The standard is single speed induction motors, but they are slowly losing ground to dual speed and variable speed motors. Variable speed and dual speed have grown into popularity due to their energy pink soap brush cleaner how to use and have also been bolstered by electric companies offering rebates for homeowners who choose to upgrade.

Most single speed motors run a dual voltage setup which allows them to run on either or voltage user must adjust voltage before installing. Variable speed and most dual speed run strictly on voltage; there are some exceptions in the dual speed category that run on The impeller is what makes all the magic happen; magic meaning, transforming the spinning shaft of the motor into the wbat force for pumping. An impeller is essentially two discs glued together to sandwiching fan blades also called veins.

The front disc wht an opening with a porthole to focus the churning power of the impeller towards the suction pipe to the pool. The water is then rushed back to the pool. We call this an impeller accessory impeeller a very important one at that. A diffuser amplifies the pull of the impeller by creating a tightly enclosed vacuum lock to the front housing to maximize its power.

The diffuser resembles a funnel or a cone that shrouds the impeller; its tip butts up to the i,peller housing, sealed by the diffuser gasket. As the impeller spins, the diffuser shroud concentrates the turbulent energy of the impeller towards the suction pipe which makes the pump impeoler.

The impeller ring, aka the wear ring, is a x ring that fits to the tip of the impeller. The purpose of a wear ring is to act as an extension of the impeller tip to ensure a seal between the impeller and diffuser. The centrifugal force of the impeller forces the wear ring to affix to the diffuser to ensure an even tighter vacuum for priming and pumping. Wear rings are not found on every pump style but are usually seen on high pressure and high head style pumps, i. Hopefully, you have read my previous blog concerning the importance, or better yet unimportance, of the impeller screw.

The impeller screw is meant to secure an impeller to internally threaded shaft motors. The impeller screw is quickly becoming obsolete as most manufacturers switched to external thread motor shafts. This change to external threads allows for the impeller to be screwed directly to the motor shaft without the need for extra securing. The thread type of the new impellers also means the impeller is being spun in the direction that keeps it tight to the motor to prevent any slippage.

Thank you for your time and hopefully you learned something about your id. I needed information about an impeller ring and what it does — this was helpful. I see you around pool blogs a lot. I like you. It sounds like you are talking about a Booster pump.

Does your pump look like this? Polaris Booster Pump — PB If so then the parts and their names are listed below the picture. Any thoughts on the direction of impeller ring when replacing it?

Does the flat side sit on impeller? The thick lip of the wear ring should be butting up against the diffuser. Hopefully, you can mae am the picture below, that the lip is opposite the the impeller disk. Strainer Basket The strainer basket collects debris before it reaches the important parts of the drivetrain. There whta four main gaskets and seals on a pool pump: Lid Gasket — located on or under the iis lid.

Diffuser Gasket — Found on the cone tip of the diffuser. Housing Gaske t — Largest of the poool and found in the seam between the main housing on the motor pooll plate. This gasket is also called the seal plate gasket. Shaft What is the bsi sensor — The two-sided seal that sits underneath the impeller on the shaft of the motor.

This is the most important seal as it prevents whzt from surging into wht motor and causing fatal damage. The Drive Train Motor The driving force behind the pump is its motor pmup creates the churning force whqt to prime the pump and circulates water. Impeller The impeller is what makes all the magic happen; magic meaning, transforming the spinning shaft of the motor into the pulling force for pumping.

Diffuser We call this an impeller accessory and a very important one at that. The Impeller Ring…My Precious Impeller Ring The impeller ring, aka the wear ring, is a plastic ring that fits to the tip of the impeller. Impeller Screw Hopefully, you have read my previous blog concerning the importance, or better yet unimportance, of the impeller screw. I need to know the name of the part that the motor that runs the in pool cleaner attaches to.

Looking for direction for a poool radiant water systems above ground pool pump cover. Leave a Reply Cancel reply Your email address impellerr not be published.

Every how to cook flank steak on gas grill has their favorite tool. A carpenter uses a hammer, a painter has a brush and a pool man has Read Now. Replace the Motor or the Bearings? January 22, Matthew Simmons.

That is a loaded question if I have ever heard one or read, in this case. When a motor goes down, In this video, we show you how to wire WhisperFlo and similar pumps for v Watch Now. Oh, do we hear impel,er all when it comes to pool parts! Looking for pool parts? Shop Now.

Blog for swimming pool owners, Care & Repair, Buyer's Guides and Pool Fun information

The heart of the your pool circulation system, your pool pump is called to perform continuous duty, every day of the pool season. And like your precious heart, keeping your pool pump working is the most important part of pool maintenance. Knowing the components of your pool pump, as well as a general understanding of how the pump and motor operates, can be very helpful in a quick diagnosis and repair. The lid assembly, includes the lid or cover , lid o-ring and clamp.

Common problems include damaged o-rings, cracked pump lids or faulty clamp bands or just loose lids. The pump lid must be very tight to create an air-tight seal. TIP: Use a Teflon based pool lube on the pump lid o-ring to help seal and protect.

Common problems include cracking from freeze damage or plumbing damage. Not usually a common replacement part, but can be replaced fairly easily if needed. Common problems include cracked baskets or cracking from freeze damage or plumbing damage. Not usually a common replacement part, but the Strainer can be replaced if needed. Missing drain plugs 13 , or bad pump lid o-rings. TIP: Cracks around the inlet port can be fixed by tightening a fitting into the port until the crack widens then clean with pipe cleaner.

Fill crack with ABS glue and quickly unthread fitting to seal. The Diffuser 16 encloses the impeller, to focus the draw of water into the impeller eye, and control the flow out of the impeller with a series of stationary vanes. The Diffuser seals the impeller eye up to the back of the Pump Housing 1 , to create suction. Common problems include a missing or damaged Diffuser Gasket 3 or O-ring, an oh-so important part to your pool pump.

Sometimes they fall off the front end of the Diffuser, when removing the motor for service. TIP: If the Diffuser does not tighten down fully over the impeller, the impeller may not be fully seated.

The Impeller 12 is a rotor used to increase the pressure of the pool water. The opposite of a turbine, which uses the water flow to create energy, an impeller uses energy to create water flow. Common problems include clogging with fine debris like grass clippings, pine needles, pebbles, seeds or the stamens from flowering trees. Reach into the eye with needle nose pliers, or remove the motor and ream the impeller vanes with a small wire. Impeller wear rings are small plastic rings 10 that protect a misaligned impeller from rubbing, and must be installed before placing the Diffuser.

TIP: Each horsepower motor is matched to a slightly different sized impeller, with a different part number. A shaft seal 14 , located behind the impeller, is an ingenious two-piece device that allows the motor shaft to pass through the seal plate, spin at nearly RPM, and not leak water along the shaft, protecting the motor and preventing leaks. Common problems include leaking and failure due to high heat, poor water chemistry, salt or ozone corrosion, or water-hammer damage. Shaft Seals are inexpensive, but only one size fits your particular pump.

Most pumps use seal , , or seals. TIP: The shaft seal only can be installed in one correct manner. The Seal Plate 5 and a Bracket in this case, is what is attached to the motor, behind the impeller 2. It is called a seal plate not because it seals up to the pump volute, which it does, but because it provides a place to install the back-half of the shaft seal 3 , the ceramic ring installed in the center of the Seal Plate.

Common problems are not common with a Seal Plate, but older Polaris booster pumps as shown above may experience small stress fractures around the seal seat, which requires replacement. The Motor 1 is electrically driven, and the power causes the rotor to spin as the electromagnetic poles alternatively attract and repel each other.

The motor is connected to the impeller 21 , and when fed an air-tight supply of water, will create pressure and water flow. New style variable speed motors p ermanent magnet motor, which run cooler and quieter and with longer lifespan than their less efficient induction motors, used on standard pumps.

Common problems include overheating, shorting of the windings, hot spots, water damage. TIP: For areas with heavy rain or strong sunshine on the pump area, consider a vented Motor Cover to protect the motor.

For those of you with the Variable Speed pump, a V ariable frequency drive VFD is what is used to vary the frequency and voltage of power supply. The VFD also controls ramp-up and ramp-down of the motor during modes or programs. Common problems include problems with the control assembly 23 or motor drive 25 , or a new control or wiring covers. The Wire Harness is a name for the pump power wires and conduit, along with the conduit connector fittings. Common problems include cracked conduit or wires, or loose connectors, especially after 20 or 30 years.

Sign-Up for New Post Notifications! Hi Jerry, that would be an air leak, on the suction-side, before the impeller. Most likely from the pump lid, the pump drain plug or the pipe that threads into the pump.

Hi Davy, I have an intex 15 x 48 metal frame pool. I purchased a hayward ec40 d. Based on info from this site. Super excited it finally came in! However, the new system uses 1. What else do I need in order to convert? Please tell me what I am missing. Thank you in advance! Hi Meghan, sorry for the confusion, the Type B adapters are for intex hoses. We have another adapter that you would put on the pump and filter, to use the Intex Hoses that came with your pool.

Skip to primary content. Skip to secondary content. Search for:. Plastering the Pool. I get blowback from pump to skimmer This just started.

0 thoughts on “What is an impeller on a pool pump

Add a comment

Your email will not be published. Required fields are marked *