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What does the term Backwash refer to in the operation of swimming pool filters?
Wiki User
∙ 14y ago
Back washing means that water from the system runs over the top of the sand in the sand filter to waste in order to clear it and reduce the pressure needed for the water to circulate.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agobackwasing is when you reverse the direction inside the filter and sends all the debris and oils caught by the sand or cartridges out a waste pipe.
Wiki User
∙ 10y agois it legalel for swimming pool back wash into sewerage system
Wiki User
∙ 12y agoOnce the pressure guage reads 10 psi above clean filter psi
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