Hi I'm getting filter sand on the backwash setting and return jets,just replaced the umbrella and laterals in Hayward filter,could I be having problems with the valve on the top of the filter.Thank You for any assistance Larry
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Hi I'm getting filter sand on the backwash setting and return jets,just replaced the umbrella and laterals in Hayward filter,could I be having problems with the valve on the top of the filter.Thank You for any assistance Larry