Pumped immediately after switching on. Schematic photos do not match the pump. Instructions not readable. The hardware is unusable. .Phase 2 instructions were also sent. wrong diagram again, but here is part of the guide. Please replace the gear pump. 6, if A 7) the magnetic solenoid does not rise, it is necessary to open the domestic name rubytwo four-way valve and completely remove the normally closed solenoid valve. Phase 2. I have to say, although we couldn't understand the instructions, their hotline was quick and polite. The return also went smoothly. I find that very few had any problems with the instructions. I'm sorry I did it.