This is a good easy and probibly right way to play backwater.
to get there type in satus quo tab in google, it's the first one


Guitar intro:

E|--------------------------------------------|
H|--------------------------------------------|
G|-------------------------7-6- = 1st guitar--|
D|-----7---7---------------9-8- = 2nd guitar--|
A|-8-9---9---9-7-9-7-5-7-9--------------------|
E|--------------------------------------------|

E|------------------------------------------------|
H|------------------------------------------------|
G|-----------------------7-9-7-9b11- = 1st guitar-|
D|---7---7----------------------------------------|
A|-9---9---9-7-9-7-5-7-9-5-7-5-4---- = 2nd guitar-|
E|------------------------------------------------|

E|--------------------------------------------|
H|--------------------------------------------|
G|-------------------------7-6- = 1st guitar--|
D|-----7---7---------------9-8- = 2nd guitar--|
A|-8-9---9---9-7-9-7-5-7-9--------------------|
E|--------------------------------------------|

E|------------------------------------------------|
H|------------------------------------------------|
G|-----------------------7-9-7-9b11- = 1st guitar-|
D|---7---7----------------------------------------|
A|-9---9---9-7-9-7-5-7-9-5-7-5-4---- = 2nd guitar-|
E|------------------------------------------------|

E|-------------------------------------------------|
H|-------------------------------------------------|
G|-------------------------------------------------|
D|-----7---7------------------7---7----------------|
A|-8-9---9---9-7-9-7-5-7-9--9---9---9-7-9-7-5-7-9--|
E|-------------------------------------------------|

E|-------------------------------------------------5--|
H|-------------------------------------------------5--|
G|-------------------------------------------------6--|
D|---7---7------------------7---7------------------7--|
A|-9---9---9-7-9-7-5-7-9--9---9---9--7-9-7-5-7-5---7--|
E|-----------------------------------------------7-5--|