There is water in the float flow meter
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In a float flow meter, the amount of water above the float affects the actual flow rate – does it cause it to be higher or lower? The substance flowing through is oil
In my understanding, if the float is completely submerged in oil, it has no impact on the measurement; however, if there is water at the position of the float, the measurement will be higher because the density of water is greater than that of oil.
This amount of water increases the mass of the float, causing the displayed actual flow rate to be lower than the true value.
It shouldn’t have any impact! If the pipeline is flushed, then it still can’t be used as mentioned above! Moreover, if the float flow meter gets stuck, it can be rinsed with water even after it’s taken offline