Here is some info that anyone with or looking to build a jetter might find use full. This information was collected from the NASSCO Jetter code of practice manual.

Maximum pressures for pipe in good structural condition

Material------ PSI

Asbestos Cement---- 5000

Brick/masonry ---- 1500

Clay----- -------- 5000

Concrete --------- 5000

Orangeburg/fiber ----1500

Plastic(PVC,PE) ---- 2600

Flows and Pressure by Hose size

Hose Diameter-- Max op. Pressure--- Min flow GPM --- Max Flow GPM

.50" ---- 4000 psi----- >12 GPM----- <=25GPM

.75"----- 3000 psi---- >20 GPM -----<=60GPM

1.0"----- 3000 psi---- >30 GPM----- <=80GPM

1.25"---- 2000 psi ---->80 GPM -----<=125GPM

1.50" ----2000 psi----- >60 GPM -----<=180GPM

Pipe storage Capacity per 20 feet of pipe

Pipe Diameter----- Gallons of storage

4" ------7.30

6"------ 16.5

8" ------30.0

10" -----45.8

12"----- 66.0

Hope this is use full. Ricky

Maximum pressures for pipe in good structural condition

Material------ PSI

Asbestos Cement---- 5000

Brick/masonry ---- 1500

Clay----- -------- 5000

Concrete --------- 5000

Orangeburg/fiber ----1500

Plastic(PVC,PE) ---- 2600

Flows and Pressure by Hose size

Hose Diameter-- Max op. Pressure--- Min flow GPM --- Max Flow GPM

.50" ---- 4000 psi----- >12 GPM----- <=25GPM

.75"----- 3000 psi---- >20 GPM -----<=60GPM

1.0"----- 3000 psi---- >30 GPM----- <=80GPM

1.25"---- 2000 psi ---->80 GPM -----<=125GPM

1.50" ----2000 psi----- >60 GPM -----<=180GPM

Pipe storage Capacity per 20 feet of pipe

Pipe Diameter----- Gallons of storage

4" ------7.30

6"------ 16.5

8" ------30.0

10" -----45.8

12"----- 66.0

Hope this is use full. Ricky

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