Jeff H Young
In the Trades
Excuse me for over explaining but When I refer to Blue glue there are many , many companies that sell pvc glue that is blue in color some of which could have differant specifications. Rain or Shine just happens to be one pvc glue that also is blue in color it is a trademark name . I dont assume or belive that all blue pvc glue is the same as Rain or Shine or that Rain or shine was the glue used on your tub originaly . However I would not worry one bit over which glue is best at this point and also belive your replacement should last many many years unless you really did something very wrong. I think if its holding now you are good. good luck with it!