Q: Does DIFFUL offer a pump for 3-inch I.D. wells?A: Yes, we do have a small shallow well pump designed for small wells. 2-inch DC brushless solar submersible pump with plastic impeller.Model：2DPC1-25-12-80Model：2DPC2-25-24-200Model：2DPC2.5-36-24-300Model：2DPC2.5-55-48-400 Please contact us for more details. E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: Why go for a Solar Water Pump System?A: Well sunlight is free and abundant. Humans are dependent on water for survival. Inorder to obtain their daily water requirements we pump our water from wells, dams, rivers, ponds,etc. Since the system is OFF-Grid, it can always pump water even in an apocalypse. E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: Does COVID-19 have an impact on product deliveryA: Due to the impact of COVID-19, the product delivery period will be appropriately extended. Please consult us for the specific delivery date. E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: Can solar submersible pumps be used in rivers? A: No. Solar submersible pumps are used to pump water in wells. If the solar submersible pump is used in rivers. Because the water level in the river is relatively shallow, it may not be used normally. At the same time, there is more sediment in the river, which will shorten the service life of the pump.If you want to pump water in a river, choose ...

Q: Can DIFFUL solar pumps use mains electricity? A: Yes. The DIFFUL solar pump AC / DC model can be connected to both solar panels and mains electricityIf you are interested in solar pumps. Please contact me E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: What is the total dynamic head (TDH)? A: Head is measured in feet/meters or psi and it is a term for the distance that a pump has to push the water from your source to your tank. It may seem odd to be able to list head in terms of pressure or distance, but keep in mind that a column of water 2.31' tall produces 1 psi at the bottom of that column so there is a correlation between distance and pr...

Q: Should I use batteries in my pumping system or go solar direct? A: DON'T USE BATTERIES! The only reason I would ever consider using batteries in a solar pumping system is if you have a very low volume producing water source (well/spring) and you need to pump as much water out of it as you can each day. Otherwise, there are several reasons to avoid batteries in a pumping system: Using batteries ...

Q: Does COVID-19 affect shipping?A: Currently affected by COVID-19, air transport in many countries and regions has been suspended. Such as many countries in South America and Africa. It may also be returned or detained during shipping.Sea transport is temporarily not affected by COVID-19 and can be transported normally. If you want to buy a solar pump, please contact me first. E-mail/Skype:sales0...

Q: Can I "pull" water out of a well with a surface pump?A: Yes, and the suction range of our solar surface pump is 8m. The theoretical maximum is 8m if you were able to pull a perfect vacuum at sea level. However, few pumping systems are setup at sea level and no pump on the market is able to develop a perfect vacuum on its inlet side. that you can reliably pull water out a well where the static w...

Q: What is the suction range of DCPM series solar surface pump?A: All the company's solar surface pump products have a suction range of 8 meters. Including solar pool pumps, DCPM series, DQB series and DFSU series. E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: Do I need batteries to operate a solar pump system?A: No. All of our solar pump systems are designed to operate with direct solar. However, they can be operated via batteries if needed for on-demand use. E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: How long do the solar pump systems last? A: solar panel warranty of 10 years. The normal use period is more than 25 years, they have no moving parts to wear out. Brushless solar pump warranty of 2 years. The motors in the brushless motor pumps have a 20,000-hour rating. If the water level shut-off is used to shut off the pump when the tank is full, hours of runtime are saved on the motor, exten...

Q: How does one know if they should use a submersible or a surface pump? A:The selection is based on the groundwater level and the water source. In the case of a borewell with a water table deeper than 10-15 metres, a submersible pump is used. If it is an open well, pond, etc, then using a surface pump is better. Also, the surface pump is installed when the water level is less than 10 metres. Bas...

Q: COVID-19 is spreading globally. Will it affect the delivery of solar pumps?A: The company is actively responding to the impact of the epidemic situation on us. The product delivery period has been extended due to the impact of insufficient material supply. However, through the company's active response, the impact on the company's production capacity has gradually weakened. At present, some cou...

Q: Ship method and time of solar water pumpA: For small orders of less than 5 sets, we generally use express delivery (FedEx, TNT, UPS, DHL). The shipping time is 7-15 days. Large orders are generally shipped by sea. The shipping time is 20-30 days. E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: How to choose the solar panel for DIFFUL DC solar pump?A: The power of the solar panel should be 1.3 times the power of the DC solar water pump.Solar panel voltage range:Pump voltage(V)Solar panel voltage(V)1220-362430-483630-484860-907290-120110110-150 E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: What is the solar pump payment method?A: You can pay by T / T, PayPal. If you have an Alibaba account, you can also pay by credit card with your Alibaba account. E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: Do you have solar panels for sale?A: We are a factory producing solar water pumps. We do not produce photovoltaic panels. If you want us to provide a complete solar water pump system (including photovoltaic panels), we can also configure it for you. E-mail/Skype:sales08..........comTel/WhatsApp:+86 15058288607

Q: Is the factory fully operational?A: More than 80% of factory workers have resumed work. Workers are currently working overtime to produce solar pumps. The factory has basically resumed production capacity. At the same time, the company is also stepping up efforts to increase personnel and increase production capacity. The company will improve product delivery as soon as possible to meet custome...

Q: On the delivery date during the 2019-nCoV epidemicA: Although the company has officially resumed work, due to the 2019-nCoV epidemic, there is a shortage of workshop staff, orders are piled up, and the product delivery time will be longer than the normal delivery time. With the gradual stabilization of the epidemic, the delivery period of the products may be gradually shortened. Contact us for ...

Q: I like to pull water from my pond or creek. Can I use your pump?A: Absolutely, DIFFUL has sold many systems for similar applications. Just be sure your pond or creek can keep up with your desired water demand. Freezing issues may arise if improperly installed. We also advise you to encase the solar pump in a filtration box or float the pump to ensure it is not pumping debris from the bottom of ...

Q: Can I use the solar pump for salt water applications?A: NO! The DIFFUL solar water pump is suitable for use in clean water. If used in salt water, the service life of solar water pumps will be greatly reduced. E-mail/Skype:sales02..........comTel/WhatsApp:+86 18858098438

Q: How does solar PV panels work?A: Solar photovoltaic (PV) panels converts sunlight directly to electricity (DC or Direct Current). Your solar panel will be most efficient in your locations peak sunlight hours. Sunlight hitting the surface of a cell knocks electrons loose, which then travel through a circuit from one larger to the other, providing a flow of electricity. E-mail/Skype:sales02............

Q: Is the Chinese New Year holiday?A: Yes! Holiday time of production workshop: 2020.1.14-2020.2.8Holiday time of sales department: 2020.1.18-2020-2.1During the holiday of the production workshop, no pump production work will be arranged. If you have any questions during the holiday, you can still contact our sales staff. We will continue to answer your questions. E-mail/Skype:sales02..........c...

Q: Can I use your solar pump for my irrigation?A: Yes! Customers have used our solar water pumps for small garden irrigation up to large field irrigation for crops. Our pumps can run from 80W up to 15000W, providing max. flow of 130m³/h. E-mail/Skype:sales02..........comTel/WhatsApp:+86 18858098438

Q: Can 3-inch solar screw pumping systems supply enough water for my home?A: Yes, they can! 3-inch solar screw pumps can supply up to 2.2 m³/h, depending on the lift. However, if more water and pressure are required we have the system to fit most needs, as much as 130 m³/h. Contact us today if you have questions about which solar pump is right for you. E-mail/Skype:sales02..........comTel/WhatsA...

Q: Can the solar modules be mounted on the rooftop?A: Yes, but be certain your roof structure is designed for the added weight of the system chosen. Also, be certain there are no shadows that will be on the panels at any time throughout the peak sunlight hours, as shadows will greatly reduce solar system output. E-mail/Skype:sales02..........comTel/WhatsApp:+86 18858098438

Q: How does hail affect the solar panels?A: The solar panels are rated to endure a 1-inch hailstone at 80 miles per hour. The tilt angles of the panels allow them to take glancing blows rather than direct hits. In nearly 30 years of selling these solar pump systems, and with thousands of systems in the field, we only know of a handful of panels broken by hail. They have weathered many hail storms ...

Q: Can solar submersible pumps be used in acidic wells?A: DIFFUL solar submersible pumps are designed for neutral pH. Higher and lower values could possibly corrode components. E-mail/Skype:sales02..........comTel/WhatsApp:+86 18858098438

Q: Does DIFFUL offer a solar pump for 3.75 inch I.D. wells?A: The DIFFUL 3-inch solar submersible pump can be used in 3.75-inch I.D. wells. 3-inch solar submersible pump includes the 3DSS screw pump, 3DPC plastic impeller pump, and 3DSC stainless steel impeller pump. These 3 pumps are available in 27 different models. For specific product information, please contact us. E-mail/Skype:sales02............

Q: How many different types of solar pumps are there?A: There are really only two basic types of solar pumps; positive displacement and centrifugal and these can both be subdivided into the surface mount and submersible categories. Your water source will dictate whether you need to use a surface mount or submersible pump while your daily volume requirement and total dynamic head (TDH) will determi...

Q: How much water do I need?A: That depends on how many people or head of livestock you want to provide water for. The chart below lists some averages that you can use to estimate your daily water demand. Person (drinking, bathing, toilet, etc.) 75 gal/dayCow/calf pair 20-30 gal/dayHorse or dry cow 20 gal/dayMilking cow 35 gal/daySheep ...

Q: What are the different types of solar water pumps?A: There are 4 types of solar water pumps; submersible, surface, AC and DC water pumps. A submersible water pump is one that needs to be underwater at all times to function. These are best used in boreholes and wells. They tend to be more expensive to install and maintain.a surface solar water pump is one that stays above water. It’s best used w...

Q: Why Should I use a solar water pump?A: There are many reasons as to why you should use a solar water pump. For starters, it has lower recurring/maintenance costs. Once installed, a solar pump doesn’t need electricity or gas in order to run. This saves you on the cost of fuel and electricity. E-mail/Skype:sales02..........comTel/WhatsApp:+86 18858098438

Q: Does solar pump work during cloudy/foggy days?A: The pump uses solar power to run the motor, so cloudy/foggy days can impact the normal operation of a solar water pump unless it’s hooked to a hybrid power supply. Additionally, we anticipate cloudy/foggy days that’s why we include a tank(s) in the design of a solar water system for your project. The tank acts as a “battery” of sorts as it stores...

Q: Should The Solar Panels Of A Solar Power System Be Cleaned?A: As long as the solar panels are mounted with a pitch of 10-15 degrees, most of the dirt should be washed off by the rain. When the solar modules are particularly dirty, and no rain is expected due to a dry season, it can be smart to clean the solar panels though. Cleaning the solar panels should be done with a soft cloth (to protect ...

Q: When the Dry Run Switch trips and turns off the pump, does it reset automatically?A: Yes. The DIFFUL solar submersible pump features intelligent water shortage protection. The pump stops working automatically when there is no water in the well, and automatically start working 30 minutes later. E-mail/Skype:sales02..........comTel/WhatsApp:+86 18858098438

Q: Do your solar pumps have to a controller?A: A controller acts like the transmission in a vehicle. It lowers the voltage and raises the current to run the pump, however slowly, in low-light conditions-like shifting to low gear. The controller also protects the motor from overload and over-speed and provides low-power float switch control. Controllers will increase system performance approximate...

Q: What is a submersible Vs Surface solar water pump?A: The difference between these two types of pumps is in the names (among many other things). A submersible water pump is one that needs to be underwater at all times to function. These are best used in boreholes and wells. They tend to be more expensive to install and maintain. On the other hand, a surface solar water pump is one that stays ab...

Q: What are the probes used for and are they needed?A: The probes are used to protect the motor from running dry. On the borehole pumps, it's advised to make use of them, however, on swimming pool pumps they are not needed. E-mail/Skype:sales02..........comTel/WhatsApp:+86 18858098438