Updated: October 31, 2018
The pool pump is an essential piece of equipment that will keep your pool clean, hygienic and warm. If the pool pump malfunctions then there should be alternatives that should be done. There are a set of new generation pool pumps with automatic controls, safety features and these pumps could be self-repaired by owners.
But you should know that not all pool pump problems can be self-repaired. These are complicated problems and troubles that only experts could be trusted on these matters and especially with electrical aspects.
If there any sign of wear and tear, it should given notice before things get worse. Additionally piping system, electrical wiring and other accessories which should be checked regularly for mechanical and electrical troubles.
While most manufacturers estimate the service life of their pool pump motors at 8 to 10 years. To avoid common mistakes that pool owners do when troubleshooting a pump, you should know about the common problems:
This is the most common trouble that pool pumps encounter. Bearings are vulnerable to shock, corrosion and vibration. The sound of the motor experience would have a whirring sound and this makes it time to replace the bearings.
You should replace both bearings, rear and front even if you find only one to be defective. Bearings are the most vulnerable parts of the motor as these are the ones that are subject to more stress than any other part of the pump system.
Impellers can also get clogged. This is especially if the water it is pumping is full of large debris that accidentally pass through the filter or strainer. Sand filters usually experience this problem. Sometimes, the impeller washer, nuts and diffuser bolts have loosened or worn out and these clogged the system.
Pool pumps should be run with enough water on the suction side. While some models are self-priming, there are others are primed manually. In case the motor is run without water on the system, this may over speed the motor shaft because it has no medium that will slow down the speed. The motor should be shut-off immediately to stop it from getting damaged further.
A short circuit occurs when there is a presence of fluid inside the motor’s windings. This water could have seeped in through during a whole night’s strong rain.
The common denominator in designing motor size in the regular pool so that the whole water in the pool is re-circulated within 8 hours. The standard size for piping is one to one and a half inches of the pipe for suction and discharge sides for family-size above ground swimming pools.
The size of plumbing system may be reduced by one size higher or lower when needed. This may not overwork the motor. Usually, this is done when the frequency of utilization of the pool. But experts have set this standard to compensate for the subsequent increase and decrease of users in the long run.
You should know that when a motor is overloaded, the motor is more likely to burn-out. Also, bad bearings could cause the stator to rotate unbalance which overheats the windings and burns the coils.
There are times that this happens and it happens frequently. A pool pump rated at 120-volt but accidentally plugged into an outlet having a supply voltage of 220 volts. This is one among the many pool mistakes that owners make when installing power supply or testing a pump.
When the pool pump is seldom used, then the bearings need to be lubricated so that there is no build up of rust. There are new models in the market which have self-oiling and maintain the right lubricant to keep the bearings run smoothly in any weather. These types of never run dry of lubrication even when not used for long periods.
Another mistake that pool owners make is matching a 1-hp motor to the 2-hp impeller or a 2-hp motor to a 1-hp impeller. While the drive assembly should have the same power as its counterpart to avoid unmatched parts which may cause unbalanced operation that may overheat or overload either part.
The flanges of the motor and pump must also match so that there is no leak and the gasket fits. The bolt holes on the flanges must also be matched each other to avoid pressure drop that may result from the gap. The pressure drop will prolong the continuous operation of the pump giving you higher electricity bill.
These low-headed pumps are designed for high flow, at low-head pressures. Also, these pumps are used for waterfalls or water features, where there is little or no back pressure. These pumps normally run at 1725 RPM which makes them quiet and energy efficient.
These medium head pumps are the workhorses of the pool industry. When it comes to pumps, these are only for pools without spas. When you only need to circulate your pool’s water, especially on pools with one and a half inch or two inch plumbing, medium-head pumps are usually the right choice.
The pumps are necessary as pool designs became more complex. This when the pool pump is used for addition of spas and water features. This puts demand on pumps that they often cannot handle and this changed the market entirely.
Newer popular applications with spas, slides and other water features require pumps that can overcome higher head pressures and higher restriction to flow to provide the water necessary for proper operation.
Stepping your single-speed pool pump to an intelligent,variable speed pool pump with energy star rated. This can give you a energy savings of 90% every season. They can handle more complex pool applications, and because they’re intelligent, they adjust their speed automatically. You can also get a rebate from the utility company and the added benefits of saving money when the pumps are quieter and do a better job filtering the water of the pool.
A leak underneath the pool pump is caused by a pressure-side leak. This can be fixed by inspecting the impeller housing o-ring, shaft seal and replacing any worn, cracked o-rings or seals. But, before you take apart your pool pump, we recommend purchasing a go-kit. This not that expensive and it is the necessary parts needed to replace your worn o-rings and seals.
If your pump basket does not fill with water, you will have to prime the pump. This can be done in the following steps:
In case your pool pump does not start and you hear a humming noise, check you impeller for any debris. If debris starts to build, it can block the impeller and disable the pool pump. If you need to check the impeller, then you should power off the pump and remove the screws in the middle of the pump body.
After you remove the screws, you need to pull the assembly out of the housing and remove the gasket away from the impeller, remove any debris and re-assemble.
To operate properly, pool pumps must be airtight. The pool pump will suck in air if there is a leak. The first thing you should check is the pump lid. If not on properly, the pump will suck in air and the pump will not be able to prime.
If that does not solve the problem you’ll want to check where the pipe enters the pump, the valve stem on any of the suction valves, the plumbing on the suction side of the pump (before the impeller), o-rings and gaskets.
You should look for cracks, leaks, loose or old fittings and see if you need to repair or replace them. If you still can’t find a leak, spray some shaving cream on to the areas listed above. The leak will draw the shaving cream in and leave a dimple.
If your pump is not starting you need to check a few things to get it working well. First, you will have to check if the timer makes sure the pump is on. If the pump is on and you hear a humming noise then this could be because of a bad capacitor.
The capacitor is what starts the pump by giving it a jolt of electricity. You should replace the capacitor. It can still store power so be careful when you are replacing it. If your pump is old, you should consider replacing the motor instead.
If your pump does turn on, but loses power, this could be overheating. So what should you do? You should try running the pump during the night to avoid overheating. If this does not work, check the bottom vents of the motor to make sure there is nothing inhibiting the fan. If the problem persists, you’ll have to replace the pool motor or pool pump.
If the flow rate of the pump has dropped, you might want to make sure there is nothing blocking the flow of the pump or filter. This can be done by checking your filter gauge first. If you are above 10 psi over the clean reading specified by the manufacturer, you should clean the filter to reduce the pressure and reset the flow back to the pool pump.
Next, check your pump basket and impeller for debris that would be blocking water flow. To remove the impeller, turn the power off to the pump and remove the screws in the middle of the pump body. Once the screws have been removed, pull the assembly out of the housing and remove the gasket away from the impeller, remove any debris and re-assemble.
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