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Water Treatment

Model # 3903005 Official Craftsman cascade water system

Here are the diagrams and repair parts for Official Craftsman 3903005 cascade water system, as well as links to manuals and error code tables, if available.

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Browse Parts for
3903005 Cascade Water System
Pump Vertical Casing Adapter Seal Ring, 2-in J21-17
#4

Casing adapter diagram

Pump vertical casing adapter seal ring, 2-in

Part #J21-17

The manufacturer no longer makes this part, and there's no substitute part

Wear Ring J23-11
#5

1 hp multistage jet pump diagram

Wear ring

Part #J23-11

The manufacturer no longer makes this part, and there's no substitute part

Guarantee F642-12966A

#NI

All parts diagram

Guarantee

Part #F642-12966A

The manufacturer no longer makes this part, and there's no substitute part

Venturi J32A-24D
#2A

Double pipe jets with cast iron venturi diagram

Venturi

Part #J32A-24D

The manufacturer no longer makes this part, and there's no substitute part

Package Jet 2974

#NI

All parts diagram

Package jet

Part #2974

The manufacturer no longer makes this part, and there's no substitute part

Check Valve J161-1
#7

Single pipe jets with cast iron venturi diagram

Check valve

Part #J161-1

The manufacturer no longer makes this part, and there's no substitute part

Seal Plate L3-9
#3

1 hp multistage jet pump diagram

Seal plate

Part #L3-9

The manufacturer no longer makes this part, and there's no substitute part

Jet 2674

#NI

All parts diagram

Jet

Part #2674

The manufacturer no longer makes this part, and there's no substitute part

Pipe Plug U78-56C
#49

Tank group diagram

Pipe plug

Part #U78-56C

The manufacturer no longer makes this part, and there's no substitute part

Jet 2664

#NI

All parts diagram

Jet

Part #2664

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your water treatment

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