shaft alignment

Hello,

Are there any methods to check the plumb  of vertical hydro turbine shaft other than 4 wire? I found the use of inclinometer as discussed in hydroworld.com .But that may be quite expensive  to use for me. 

Kindly suggest any other methods or may be improved methodology using this 4 wire(piano)method that you have gone through for vertical hydro turbines.

thanks 

santosh

 

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