no, not drilling hole. was buying pluming parts and bought all 1" parts then came home but nothing fit. it's an 1" bulkhead but that's internal, i need to find out what the outer is.
so right now i'm debating if i should return the parts to get 1.25 parts and pvc tubing or stick to the 1" tubing and find an converter from 1.25 to 1" for the drain