ASI offers surge blocks for well development or well rehabilitation. The surge block is lowered down the well pipe and is repeatedly moved up and down to force open the slots on the screen. Sch. 80 or Sch. 40. Check valves available.
Pipe Tap 3/4", 1/2", 1", 1 1/4"
Pipe Size 1 1/4", 1 1/2", 2", 4", 6"
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Item #

Diameter

Schedule

Female Pipe Thread

2SB40

2 in

SCH 40

1

2SB80

2 in

SCH 80

1

4SB40

4 in

SCH 40

1 1/4

4SB80

4 in

SCH 80

1 1/4

6SB40

6 in

SCH 40

2