Increase on the pump
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There’s a strange thing with our installation: the flow rate on the two pumps connected in parallel is not as good as that on just one of the pumps. Why is that?
Then it depends on what the definition of a sufficient quantity is
If one pump was originally capable of handling 25 cubic meters per unit time, then when the backup pump was turned on, the flow rate actually decreased; in fact, both pumps ended up with no water left to pump.
The inlet pipeline is too thin, I guess:lol
The import volume is insufficient; check whether the inlet pipeline is too narrow or too long. If there is pressure at the inlet, see if it is possible to increase that pressure.
Our pipeline has an inlet of 150 and an outlet of 100
We also need to check the flow rate compatibility with your pump.
It is mainly due to insufficient suction volume and excessive discharge volume, which causes pressure buildup in the pump
I agree with what was said above; the main issue is that the pumping capacity of the pump is too high. If this situation persists, either the storage tank needs to be pressurized or a larger pump needs to be installed.
We’ve been doing this all along; we don’t know of any better way, but we can’t keep going like this forever
You can describe the operating conditions before and after, and I can help analyze them as well.