Sport & Outdoor – Others

How to Identify and Resolve Common Issues ?

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All threaded on type impellers are right hand thread and are removed by turning the impeller in a counter clockwise direction. 1. Remove the casing cover to expose the impeller.
All threaded on type impellers are right hand thread and are removed by turning the impeller in a counter clockwise direction. 1. Remove the casing cover to expose the impeller.
All threaded on type impellers are right hand thread and are removed by turning the impeller in a counter clockwise direction. 1. Remove the casing cover to expose the impeller.
All threaded on type impellers are right hand thread and are removed by turning the impeller in a counter clockwise direction. 1. Remove the casing cover to expose the impeller.
There are many methods for repairing the impeller of the water pump. There are many methods for repairing the impeller cavitation, such as ARC polymer composite material coating, powder spraying (welding), epoxy resin coating, and rubber and nylon composite material repair, etc.
Impeller tip clearance is the gap between the impeller blades and the pump casing. The importance of having a very low tip clearance is directly related to propulsive efficiency.
Which type of impeller is most common? The most common impeller type is the closed impeller, known for its high efficiency and ability to handle a wide range of fluids and solids. Closed impellers are often used in industrial applications such as wastewater treatment, chemical processing, and mining.
To check this, hold the magnet in one hand and the blades in the other hand and try to turn them in the opposite direction. Most impellers will turn slightly and then lock. If the blade keeps spinning on the magnet without ever locking, then your impeller is broken and needs to be replaced.
Impellers are attached to a shaft that is connected to a motor.
a) The Driven side plates are the best place on the impeller to remove material.
An impeller is usually a short cylinder with an open inlet (called an eye) to accept incoming fluid, vanes to push the fluid radially, and a splined, keyed, or threaded bore to accept a drive shaft. It can be cheaper to cast an impeller and its spindle as one piece, rather than separately.
The inlet, or suction side of a pump is the point of lowest pressure in a given pump. For positive displacement pumps, the lowest pressure occurs just prior to rotor meshing; for centrifugal pumps, lowest pressure is near the eye of the impeller.
The top 3 most common causes of impeller failure are cavitation, erosion, and corrosion. Cavitation is a huge danger, and any centrifugal pump is cavitation. “The common cavitation phenomenon on the pump impeller is caused by the pressure difference on the pump body or the impeller.
Figure 3 shows our impeller with its shaft supported by a bearing, being driven through a coupling by an electric motor. The impeller is installed in an enclosure, the “volute”, which collects the water leaving the impeller and directs it out through the pump discharge.
A PumpSleeve / FlowSleeve is simply a PVC pipe that prevents water flow into the pump from the lateral directions, and directs waterflow to enter from the motor`s end, allowing for water to pass over the motor first before entering the intake.
A closed impeller is the most efficient form and is ideal for handling clean liquids with low viscosity. Consisting of two plates (known as shrouds) either side of the impeller vanes and a boss, extending from the front shroud into the pump suction to guide the liquid into the impeller eye.
Closed Impellers have vanes that are “sandwiched” between two solid, circular plates. The liquid travels through the channels between the impellers and between the plates. This design creates the most efficient flow from the eye to the discharge port.
As the impeller rotates it draws in fluid, increasing the velocity which moves the fluid to the discharge point. A centrifugal pump is categorised as a non-positive displacement pump. Traps a certain amount of liquid and forces it from the suction to the discharge port. Flow rate remains constant as change in pressure.
The speed and diameter of the impeller determines the head or pressure that the pump can generate. The rotational speed and height of the impeller blades determines the flow that the pump can accommodate [4, 5]. The design of the impeller diameter is critical because it affect the performance of the centrifugal pump.
Lifespan: 5–7 Years

The lifespan of a pump impeller depends on how often you run your pump, cleanliness of your pool water, and maintenance quality. Debris-filled water is generally the cause of impeller failure, as small particles like pebbles, twigs, and leaves can clog and damage the impeller.

The action of the impeller increases the fluid`s velocity and pressure and also directs it towards the pump outlet.
Trimming should be limited to about 75% of a pump`s maximum impeller diameter, because excessive trimming can result in a mismatched impeller and casing.
Hence, the impellers of the ceramic centrifugal pumps usually have a larger thickness. The blade thickness in their work is from 15 mm to 28 mm.
Larger pump impellers produce greater values of head for a given speed. This is because the head is proportional to the tip speed. The relationship of head to tip speed can be approximated by Equation 1. Tip velocity can also be related to impeller diameter and rotating speed by Equation 2.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Intex pool not compatible with Polaris vac-sweep cleaner
ANSWER : Polaris should have an adapter to make it fit, I’m surprised you didn’t get one, usually an adapter is put in a box to make it work with multiple pools, you can call them and order one or go to a local hardware store or Menards and make your own. They will have PVC fitting adapters. You should be able to find one that will work which you may need to permanently attach it on the one end and custom fit it, but if you have basic skills, then you shouldn’t have a problem with getting it to work. Let me know how this turns out.Benjamin

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I have a Intex 18×4 above ground pool with original pump that takes type A filter cartridges. Did not set up last year and cannot find manual. The pump is leaking around the top after putting new filter in. I know I am not remembering everything I’m supposed to do with hose connecting into pump and pool when you change filters or flush pump. Can you help me?
ANSWER : For manual you can visit this link. Hope it will help you.

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Mar 12, 2010 – Could it be the check valve? I took it off and the flap appears to be working correctly. This well has been here a long time. Never given me any problems. I do have galvenized couplers on the discharge and intake sides. Old. Could these be leaking even though they show no sign of water? The discharge is able to hold 30 pounds easily overnight. I do not hear any vacuum in the intake when I take it off. Could the pipe to the well have a leak? I know I would have to insert a sleeve bnut I do not want to go through the hassle if I do not have to. I had put on a brand new pump from the hardware store that did the same thing so I think that would elliminate the pump as being the problem.
Mar 12, 2010 – I have a 3/4hp flotec convertible jet pump. It is able to hold 30lbs pressure on the discharge side as the primie easily for 24 hours. It is not able to pull water from the well whcih has been here for years. i disconnected it for the winter and rehooked it up. The galvanized couplers on the discharge and pump side are old but do not appear to be leakeing as I taped them well. The check valve seems to be functioning well as I took it off and the flap works correctly. The well is not pulling watrer. there does not appear to be a vacuum on the check vale when I losen it. could the check valve be bad? I am aware I might have to resleeve the well, but do not want to hassle with this if I do not have to. I want to eliminate everything else first. i put another brand new pump on it to see if it was that. That partiuclar pump which was the same thng did not work either.

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ANSWER : Your well has gone dry it seems. It has happened to my before. At first the new pump I purchased that did not pump I took back for exchange and still no water. I finally gave in and called the well experts and I was told the well was dried up

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I have the Intex Sand/Pump pool filter Model SF 20110. It’s been running real great for the last 4 months. However recently it has been tripping the internal overloads and I have found the pump motor to be very hot when I put my hand against it. I have tried several different solutions, such as a level ground platform that was clear of any obstructions, made sure that the motor vents under the motor was clear of anything that would prevent air flow. I used a non electrical type of lubricate on the impeller. When I would turn on the pump the rotor would not turn but only would hum very loudly and then slowly begin to turn. I also noticed that the motor’s rotor shaft would not turn to freely due the tightness around the rotor’s shaft. After using the lubricate the shaft would turn a little easier. I used an amp meter on the incoming voltage line and the motor would run at 4.5 amp. And yet it still overheated and tripped the motor overloads. I can only think that the motor is still not getting enough ventilation. I have check and cleared all the incoming lines and found nothing block the pumps input or output lines. Any suggestion?
ANSWER : I just looking into this issue my self. The pump cools itself by a internal fan, which is run by the motor. Well I took the housing cover off to find out all the fan blades have broken off and were setting in the base of the pump. Once you remove the fan blades from covering the air intake, it might be fine. I will find out my self once summer gets here.

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I am renting a home in NJ, and would like to open our pool. I am not very savvy when it comes to inground pools… i tried to figure out how to turn my Hayward S244T Hi Rate Sand Filter on, and get it going. While i did manage to get water pumping into the pool, it was not filtering out.

Can you please explain to me what i am suppose to do, and how to do it. I have an owners manual, but i find it very hard to follow, and everything is already installed, i am just having problems filtering it out.

Christine Mincer

ANSWER : Hello c anna…. Opening up the pool is a pretty big job with lots of steps. That said, here is an excellent link which has all of the steps broken down


Thanks for choosing Fixya!

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Pool about to overflow
ANSWER : Syphon it (see link). It will be easier if it is an above ground pool.

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I have an old 50’s 22 Caliber Pump Crosman and it want pump up anymore
ANSWER : You need to replace the seals on pump.

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