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Working principle of float switch Connect TH and COM in the controller, put the float switch in the water tower, the water level reaches the position of the float switch, the float switch provides a signal to the controller, and the water pump stops working; when the water level drops, wait for 15 minutes, and the water pump starts again start working. How to solve the 15 minute wait time issue before the pump restarts? If the customer doesn't want to wait for 15 minutes, the pump will start working immediately after the water level drops, you can use a short wire to connect TL and COM, the pump will restart without waiting for 15 minutes, and the pump will start working immediately. (According to the customer's own needs, the short line can be connected all the time or occasionally.)

We're sorry that because our products are not low-priced consumer goods, the amount is relatively large. If we give free samples to every customer, it is indeed a huge expense, so the company stipulates that we cannot give free samples. But in order to show our sincerity, we can return the sample money to you in your bulk return order.

We are sorry that there is no way to adjust it.

The service life of the product is affected by many factors, such as water quality, customer usage habits, and whether it is used correctly. Generally, the service life of the product is more than 5 years under clear water quality conditions.

Our product warranty time is 2 years. Any quality problem, please send us photos or videos for inspection, we will guide you to solve the problem online. If the quality problem cannot be solved by yourself, we can send you the spare parts for replacement.

The DSS series is a series of screw pump products. The characteristics of screw pumps are low power, high head, and small flow. It is suitable for some scenes with small flow, such as houshold water.DPC and DLR are both plastic impeller submersible pump series. This series is cost-effective, with a large flow rate, more suitable for agricultural irrigation, and is also the most popular product series of our company. The maximum speed of DPC is 4000 rpm, and the maximum speed of DLR is 3500 rpm.The DSC series is a stainless steel impeller submersible pump series. The impeller of this series is made of stainless steel, which is more wear-resistant. For water with a small amount of sand, it is recommended to choose this series of products.

We can accept sample order.

Yes. The flow rate can be adjusted by setting the controller speed.

The battery is not necessary, you can just connect the solar panel. If you need it to work on rainy days or at night, you can connect the battery for power supply.

No, you just need to connect our controller.

1) We provide a 2-year warranty for solar water pumps (the warranty for economical water pumps is 18 months).2) For any installation problems, we will provide wiring diagrams or installation videos for your reference.3) For any quality problems, please send us photos or videos for inspection, and we will guide you to solve the problem online. If the quality problem cannot be solved by yourself, we can send you accessories for replacement.

Our water pumps are made of 201 stainless steel or 304 stainless steel. If your water pump is seriously corroded and rusted, is it because your water pump was hit during use? Maybe the pH of the water in your area is relatively high? Our solar well pumps can only be used in clean water.

A 2 HP solar powered pump can usually carry water over a horizontal distance of 700 metres, though pressure is somewhat reduced at the end of the plastic pipe. However, the flow of the water from the pump would also be influenced by the local regional topography. Hence, the above measures are tentative figures.

Q: What is the difference between DSS, DPC, DSC series? A: DSS series are solar screw pumps. The characteristic of screw pump is high head and small flow. Suitable for domestic water supply.DPC series are solar-powered plastic impeller submersible pumps. It is cost-effective, has a long service life, is more durable than a screw pump, and has a larger flow rate. However, the head is relatively small.DSC series are solar submersible pumps with stainless steel impeller. Stainless steel impellers are more durable than plastic impellers, especially in waters with high sand content.To read more about the solar pump, contact us. E-mail/Skype:sales08@diffulpump.comTel/WhatsApp:+86 15058288607