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  1. J

    Is a backwash line tied to city sewer always required in Lewisville, TX?

    Thanks, I have contacted the building official and am waiting for a response. As for draining the water, I agree. But having worked in the pool business for a few years, to my knowledge I've never seen a pool with a cartridge filter having a 3-way valve to pump to waste in this area. But I...
  2. J

    Is a backwash line tied to city sewer always required in Lewisville, TX?

    I'm trying to build my own pool in Lewisville, TX. Looking at the Residential Swimming Pool/Spa Requirements provided by the city, it says all pools and spas need a p-trap and backwash line tied to the city sewer. Looking around at other cities in the area, many have similar requirements. I'm...
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