I own an inground vinyl lined pool and will be winterizing it for the first time this year. What I am confused and frustrated about is the various opinions as to what type of plug to use in the 1.5 inch return jets for the winter…oh yeah…I live in Niagara Falls, Canada.
I have seen several people here have recommended the Hayward sp1022c type plug. However, all the reading I have done suggest that these are meant for concrete pools.
I know the abs threaded plugs exist and I have also seen these by Feherguard:
Please help…I want the best product for max resuts.