UPC 789611052584 SKU B01DCIM2X4 https://www.amazon.com/dp/B01DCIM2X4/ - https://www.amazon.com/SUMMER-WAVES-Skimmer-Water-Stopper/dp/B01DCIM2X4/ref=pd_bxgy_img_2/139-8071165-4307714?_encoding=UTF8&pd_rd_i=B01DCIM2X4&pd_rd_r=3060ea70-4c77-49c9-a743-a2d33b6e9ee7&pd_rd_w=PvHey&pd_rd_wg=6l0tx&pf_rd_p=ce6c479b-ef53-49a6-845b-bbbf35c28dd3&pf_rd_r=FN1TGB4TBM84AVAFTHP6&psc=1&refRID=FN1TGB4TBM84AVAFTHP6 Summer Waves 4.5 77 ratings Summer Waves SFX Skimmer Water Stopper $6.55 FS SUMMER STORE SHOP - Title: Summer Waves SFX Skimmer Water Stopper Replace Filters Plug Off Water Flow - Name : Summer Waves SFX Skimmer Water Stopper + Points Fits in front of the opening to the SFX filtration system Blocks water from pouring our of the pool while operating on the filter system One water stopper included For SFX skimmer filtration systems Summer Waves part # P58PP2163 ----------------------------------------------------------------------- - Round rubber stopper used to seal canister inlet during troubleshooting and maintenance - + DESC The SFX water stopper fits in front of the opening to the SFX filtration systems for Summer Waves pools to block water from pouring our of the pool while operating on the system (ie: changing filters, pumps, etc). + Reviews It will fit in the bottom of the skimmer I change to a larger pump and it works fine for me Desperately trying to figure out how to get this water stopper to stay in place, it won't stay on without holding it. Can anyone help? Thanks Answer: Best way I have found is to put the stopper over the hole, hold it in place and let the water drain a bit. The pressure will hold it in place. It does not stop the water 100%. But it does take it down to just a trickle. Question: How does this stay on without holding it? Answer: Water pressure holds it . It goes inside the pool where the water holds it in place. By louis wiggins on June 6, 2019 Had to cover a hole on a pool I bought to replace new pump so we glued this to the pool perfect fit