Jun fifteen, 2020 Insert bookmark #13 @RIPoolguy19 @Lucky13F Have you ever the two removed the skimmer lid (with pump off) and lubed the o-ring beneath the lid, it won't take a substantial gap with the strong pump to suck air in from a badly sealed lid. It is necessary to https://pool.net/gartenpool-300-x-125-cm-komplettset.html