How often does an underground channel need to be cleaned?
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The underground channels in our factory have not been cleaned since the project started. How do other factories handle this?
These times are determined by the workshop managers themselves; since each factory is different, the cleaning time also varies. We clean it when we feel it’s necessary; sometimes several times a year, and other times not at all for a year or two.
Decide based on your own family’s situation, as everyone’s circumstances are different. We usually do it once a year
When servicing submersible pumps, it is possible to check the sediment in the underground tank. If there is an excessive amount of sediment that seems likely to affect the proper operation of the submersible pump, this is an opportunity to clean it out by scooping it up and flushing it away； If it seems fine, there’s no need to clean it!
We clean it once a year, basically.
To be more specific: is it the gutter in the coke oven basement?
We generally clean it once in the first half of the year. Of course, it depends on the actual circumstances