The architect issues a variation instruction to demolish an existing undergrounddrainlinewhichisnotincluded intheoriginalscopeofthecontract.Therearenorates in the SOR for demolishing drain lines. Neither can the length of the drain linebemeasured.

Is the contractor entitled to extra payment for demolishing the drain line? If not,explain why. If so, explain the rule for valuation and the procedure for thepaymentofsuch variation work.