Main Drain Hydrostatic Relief Valve Collection Tube - 1-1/2 and 2 Inch - Two Pack size-in-gallons_501-750 This is a PVC Schedule

This is a PVC Schedule 80 Reducer Bushing with Spigot x Socket fitting connections that measure 3 x 1 Inch

(Sand can be sourced locally

An orange disposable plastic pre-gunite/plaster insert keeps debris out and retains sump shape during construction

corrosion and system contamination

This 8 inch vertical PVC valve is a float-operated valve with throttling capabilities that will cycle as required

Main Drain Hydrostatic Relief Valve Collection Tube - 1-1/2 and 2 Inch - Two Pack size-in-gallons_501-750 This is a PVC ScheduleThis is a Hayward Slotted Collector Tube for Main Drains: 1 1 2 Inch x 2 Inch FIP. For installations utilizing a hydrostatic relief valve (SP1056), using a collector tube (SP1055) will maintain a clear path to the hydrostatic valve. At least one hydrostatic relief valve in a set of suction outlets will allow hydrostatic uplift pressure caused by ground water to be relieved into the pool or spa.