Aqua Ultraviolet® PVC Union, 2" MPT x 2" SLIP Popular The solution is to add

The solution is to add a tee with a ball valve or other "bleeder valve" so that excessive air can be bled off into the atmosphere

the ball valve below the blower should always be in the closed position before the pump is turned on and whenever the pump is running

and heal missing scales

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Aqua Ultraviolet® PVC Union, 2" MPT x 2" SLIP Popular The solution is to addThese Aqua Ultraviolet PVC Unions are great for quick and easy disconnect and installation. The gasketed seal between the two halves of the union make it a sensible way to connect and disconnect glued plumbing sections. SKU UPC Code Description A50185 617750400846 2" MPT x 2" Slip Union, White