Is it a booster pump or a self-priming pump that supplies solar water from the second floor to the sixth floor?

The new building is decorated, and solar energy is also newly installed. All the solar water heaters you buy now are automatically filled with water. Using automatic self-priming pump is your best method. Install full-automatic self-priming pump and solenoid valve at the place where solar energy is added with water. When the solar energy meter shows that water is added, power is supplied to the solenoid valve synchronously. When the solenoid valve is opened, the water pump is started to add water to the solar water heater. When the water is full, the instrument stops adding water, the synchronous solenoid valve is closed, and the automatic self-priming pump continues to work. After about 5 seconds, the water pipe pressure reaches the set pressure and stops working. When solar energy adds water again, the electromagnetic valve opens, the pressure in the water pipe decreases, and the automatic self-priming pump starts again. This is the process. It is best to use automatic self-priming pump 125W, which is enough for you. Pressurization only applies pressure between the pump and the solenoid valve, and there is no pressurization elsewhere, so there will be no problem. Please feel free to use. The self-priming pump you mentioned above is the kind of pump I mentioned, which is very safe to use. If your solar water heater is old-fashioned and has no automatic water supply function, you can replace it with a new electric meter. The price of electricity meter is about 150 yuan, including solenoid valve and sensor. So when you use it, it will be fully automatic, and no one will care. I hope my answer is helpful to you. There is no problem with the pressure of tap water itself. Your pump is just an auxiliary booster. This pump is enough. I am engaged in the installation of solar energy, and I have always used it this way. But also has no side effects on solar water heaters. The solar water heater is an atmospheric pressure device, and the water added with solar energy will not generate pressure and will not burst at all. That's how you use it, yes. What I said is that if the valve is replaced by a solenoid valve, it can be fully automatic. Yours is manual, which is the biggest difference. Nothing else.