I used the intex barbed fitting adapters- (1st ones i posted)
And screwed those into the swcg and attached a regular above ground pool hose. The intex swg has male connections so you need an intex female end collar to attach to it. Some have been able to rob an intex collar & washer from old hoses and slip the collar over a 1.5” pvc box adapter fitting then glue their pvc to that.
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Some have needed to smooth things down with a file or sand paper and some have had no issues at all.