Submersible Pumps: How They Work and When They Are the Best Choice

Submersible pumps are electric pumps that are hermetically sealed. The motor is close-coupled to the pump body. The pump is submerged into the water or other media which is to be pumped.

Advantages of Submersible Pumps

The main advantage of submersible pumps is that they are not prone to cavitation because they are submerged to the media they pump. When there is a large disparity in the elevation of a pump and the media it moves, that can cause pump cavitation. There is no disparity in elevation when using a submersible pump, so the problem is solved.

Also, the positioning of submersible pump allows them to push fluids to the surface as opposed to a jet pump, which has to pull fluids. Pushing fluids is more efficient than pulling them, so the submersible pump is more efficient than other options.

How Submersible Pumps Work: the Simple Version

Submersible Pumps: How They Work and When They Are the Best Choice

Submersible pumps are actually a different style of single and multistage centrifugal pumps. There are many moving parts, but essentially the water is moved through the pump by an impeller.

Applications for Submersible Pumps

Submersible pumps are used for many more applications than one might think. They are the most popular choice for pumping water out of a basement. They are also the go to choice for a water well. They are also used for slurry pumping, drainage, sewage pumping and general industrial pumping.

In addition to water wells, submersible pumps are also popular for oil wells. They can also be used to handle sea water, treat sewage, for offshore oil drilling rigs and even for firefighting.

When is a Submersible Pump the Right Choice for You?

A submersible pump is the correct choice for any of the applications we have mentioned above. Because they are so efficient, we recommend them as a first choice for any application in which a submersible pump can be used.

To learn more about submersible pump or for a solution to your pumping operation needs, call Pump Solutions Australasia today: 1300 793 418.

Pumping Water out of Your Basement After a Flood

In the water pump business, you always get a lot of calls for information whenever there is a flood. People wonder if it could happen here, and what kind of equipment they will need if it does. We would like to extend our support and our condolences to everyone affected by the recent floods in Queensland. And in case it happens here, we’d like to give our customers and readers a guide on how to pump water out of your basement after a flood.

Flooded HouseAs flood waters recede, to ground level, the water on your ground-level floor will flow out along with it. The problem is going to be the water in your basement. Most people’s first reaction is to try and pump every bit of water out of their basement as quickly as possible. This is a huge mistake, and can result in severe structural damage to your home.

If your power is back on, we recommend a submersible electric pump. Some submersible pumps run on a 12-volt marine or car battery or alternatively a petrol / diesel driven pump. If you have a pump that runs on one of these, it is preferred. Most of us, though, will probably end up using a pump that runs on standard house electricity, and you will have to find a place to plug it in. First, though, you have to make sure that you don’t electrocute yourself going into the basement.

If the water in your basement is deep, you must remember that water conducts electricity. If you walk into a flooded basement, make sure that everything is turned off first. Then, afford yourself another layer of protection by wearing heavy rubber boots and rubber gloves that can insulate you from electricity and absolutely don’t leak.

If your fuse box isolates your basement, and you know it as 100% fact that you can disable the power in the basement while leaving it on in the rest of your house, then you can use electricity in your house on the ground floor and higher.

If you are using a standard electrical outlet, you will need to run an extension cord to your submersible pump, which will pump water outside the building through a discharge hose. You will need to stabilise the hose, and make sure to direct the hose in a position that makes the water run away from the basement.

If you have done everything right so far, you haven’t electrocuted yourself, your family, or your pets. That is the most important part of pumping water out of your basement. But the next part is very important, too: don’t pump the water out of the basement all at once.

Even if flood water has receded, the ground water level can still be high. If the waters have just receded, there is a very high probability that the ground water on the outside of your basement is at least as high as the water in the basement.

When the water level is nearly to the top of your basement, it literally exerts tons of pressure on your basement walls. The water that is inside your basement serves to equalise the pressure, and keep the water outside from collapsing your basement, and with it your foundation, and possibly your entire house.

This raises an obvious question: how do you tell when the water level is too high? We recommend pumping out a foot of water the first day. Then, you mark the water level on the wall, and see if the water level in the basement has covered the mark. If it has, the water level in the basement is still too high.

If the water level is still too high, then wait 24 hours and pump out another foot of water. If the water doesn’t cover up your mark again, then you can pump two or three feet of water out of your basement and wait overnight, remembering to mark your new spot to make sure you aren’t pumping water out too fast.

After you have done the above steps, just repeat until the water is gone, and you only have what amounts to a wet floor. After the submersible pump has removed the lion’s share of the water, use a shop-vac or mops and buckets to remove the rest of the water.

After you have removed the water, use a disinfectant with anti-fungal properties on all surfaces that were covered with water. This will help keep your basement from developing mould.

Always remember that safety comes first. Hopefully, your basement will never flood, but if it does, having the right information can save your life.

Tips for the Summer: Maintaining Your Swimming Pool with a Swimming Pool Pump

A swimming pool pump is a water pump that helps keep your swimming pool clean and sanitary. There are many steps to maintaining a swimming pool, but the most important ones are dependent on a swimming pool pump that circulates water quietly, day after day, with no lapse in performance.

Swimming PoolThe water is forced through a filter by the pump, and is recirculated into the pool. This keeps water from becoming stagnant, and ensures that proper levels of chlorine are equally distributed throughout the pool. The filter must be kept clean at all costs, and free of debris.

When opening the pool, you must first remove all water and debris that have accumulated on the pool cover. Then, make sure all equipment that needs to be attached or plugged in are ready to go. Clean all of the equipment, including the skimmers and drains. Then, remove all of the debris that has accumulated in the pool.

If you see any algae, scrub it off of the pool, then add enough water to bring the pool to the desired level. You should always test the water for calcium, pH, total alkalinity, and free chlorine. Once you have done all of this, you are ready to turn on the pump and the filter. Run them for about three hours. In the meantime, you can check filters, drains, and skimmers to make sure they are working properly. Your free available chlorine should be between 1.0 and 3.0 PPM when you are going to use the pool.

When closing the pool, you need to adjust the pH level; it should be between 7.2 and 7.6, and then use a shock treatment to further adjust the pH. Then, remove all equipment, such as pool ladders, diving boards, furniture, or ropes. If you are heating the pool, turn the heater off.

You must also run the filter for one or two days without turning it off, vacuum and brush the pool walls and the floor, making sure to remove all debris. Remember to plug the fittings on the return lines with expandable rubber plugs. Use a submersible pump to drain the pool to at least 18 inches below the skimmers. Then, drain and flush the hoses. Remember to turn off the electricity to the pool.

To finish up, recheck the pH, and put a cover on the pool.

Submersible Pump Safety

Submersible pumps can add beauty or charm to your pond. It not only filters your water and keeps it moving, but looks good while doing it. Even though it will probably end up in the middle of a small pond in your yard, or a larger one on a golf course, a submersible pump still needs to be used with the utmost of caution.

Once you get it set up, it can provide many hours of flawless service, but you need to follow some basic safety rules while installing it and starting submersible pumps.

1. As with any pump, read the instructions thoroughly. Pumps made by two different companies might look the same, but have different operational protocols. Failure to adhere to correct operational precautions and procedures can result in property damage, personal injury, or even death.

2. Before installing or servicing any pump, but especially a submersible one, make sure that any power source is disconnected. Water, electricity, and living beings don’t go well together.

3. Put the pump in a fully-developed and screened well to prevent transporting sand and other abrasives through the pump. While a submersible pump will pump sand, it can significantly lower the life of the pump if it has to handle abrasives on a regular basis.

4. If you put the pump in a well, always make sure that it is positioned so that the well doesn’t run dry. The pump cannot run dry, and if it does it will cause major damage to the pump. Motors can run dry for short periods of time, but will heat up very quickly and if left to run dry, will burn out.

5. For those who live in colder areas, always protect the pump, piping, and system from freezing. Shut the pump down if you are about to get a deep freeze, and wait until the water thaws to turn the pump back on.

6. Don’t use a submersible pump in a swimming pool.

7. Make sure the pump has a ground fault interrupter protected circuit (RCD).  This should be done for any electrical device that is being operated in or near water.

8. Hire a qualified electrician to provide the electrical power to the motor. The line voltage and frequency should always match the specifications printed on the motor. Leads and ground wires must be securely connected and waterproof. The motor should always be properly grounded before turning it on, even for a test.

9. Remember to disconnect the power before examination or servicing.