308 TOWERS AND TANKS FOR WATER-WORKS. 



TEST. 



After the completion of the work the tank shall be filled with 

 water and carefully tested, all leaks being noted and marked. 

 After emptying, all loose rivets shall be cut out and replaced. 

 Leaky joints shall be made absolutely tight by calking only, 

 and all defective parts and workmanship shall be promptly 

 corrected. Adjustable members shall be tightened when neces- 

 sary, and undue settlement of the structure shall be remedied. 



PAINTING. 



Following the preliminary test of the work, all surfaces shall 

 be thoroughly cleaned and freed from grease, dirt, detachable 

 mill scale, and rust by the use of the hammer, chisel, or wire 

 brush, and the entire surface shall be thoroughly dried. 



The priming coat shall consist of a finely ground pigment, 

 repellent to water and mixed with pure linseed-oil. It must be 

 applied as thick as possible, compatible with satisfactory spread- 

 ing. The paint shall not contain any volatile matter tending 

 to chill the surface by evaporation, and at least twenty-four (24) 

 hours shall elapse before the finishing coat is commenced. 



The material selected for the finishing coat shall be one whose 

 essential principle shall be that of an asphaltic varnish and whose 

 preparation or manufacture shall be satisfactory to the engineer, 

 and of such composition that the under or priming coat shall not 

 be softened or acted upon in an injurious manner. The finishing 

 coat shall be of a different shade of color from that of the priming. 



DELAY IN COMPLETION. 



In the event the contractor shall fail to complete the work 

 in the time agreed upon in the contract, or in such extra time 

 as may have been allowed for reasonable delays incident to the 



