One. What are the possible reasons for weak water drainage in the washing tank?
1. The water level in the tank is insufficient, leading to premature closure of the water inlet valve or improper adjustment.
2. Water tank accessories malfunction. For example, if the drain valve is not properly adjusted or there are quality issues, the water tank has been sealed prematurely.

3. Clogged drains or toilet bowl interfaces.
Two. A repair method for weak flushing in sump pits.
1. When purchasing a new toilet, after the installer has installed it, we found that the toilet's flushing mechanism was too small, requiring us to quickly identify the cause. First, we checked to see if the issue was due to a defect in the toilet itself. If not, we systematically investigated potential issues related to the installation process.
2. If the flushing volume of the squat toilet is too small, first check if the water level in the squat toilet's water tank is set too low or if there is insufficient water. Adjust the water inlet valve to a suitable level to alleviate the problem of the squat toilet's flushing volume being too small.
3. If the situation does not improve, further investigation is required. First, check if the water tank drain outlet is blocked by other components or if the lever is too short, resulting in slow and insufficient drainage.
4. Inspect the drainage pipes for any obstructions or blockages, such as bends, that may impede water flow. If any are found, adjust the configuration according to the specific site conditions.
5. Check if the inlet valve can be fully opened and if the water flow rate in public areas with high traffic can be filled within 2 minutes. If the inlet valve cannot be fully opened, it is not suitable.
6. Pay particular attention to the toilet flush tank. When installing, ensure that the curved pipe is properly connected to the toilet, and that the installation position is correct. Otherwise, it is prone to clogging, which can hinder the drainage valve's function.