TO VACUUM WITH VACUUM ADAPTER Remove cover from top of skimmer. Most likely your skimmer has two holes being either for pumping from the bottom or the rear depending on how the plumbing is configured. if you have 2 skimmers then you would turn ortega valve & close off suction to one of the skimmers so you have full suction at one of them. The idea is simple. Our skimmer basket & hole it fits into is round - probably something like 8" diameter (I haven't yet measured it, but will). through front of skimmer. When full, place hose end on vacuum adapter and place vacuum adapter over skimmer basket. To vacuum the single hole Sylvan skimmer, one would use a piece of 1″ black poly pipe, 12″ long. Once the end of the hose is underwater, remove your hand and insert the hose into the suction hole in the bottom of the skimmer (the hole farthest from the pool). But for normal operation, don't cover the hole. Pump and filter are made by Sta-Rite, and the returns, skimmer, main drain (i think), etc, are all made by Jacuzzi. Meet the Hole in one Basket. Pump and filter are made by Sta-Rite, and the returns, skimmer, main drain (i think), etc, are all made by Jacuzzi. We have always operated the pool on full skimmer, but I always wondered how you would make use of the main drain. The pipe would hit the bottom of the tee (not shown) and stick up just enough to attach your vacuum hose. Have a look at your pump with the vacuum hose plugged in. How To Manually Vacuum a Swimming Pool through the Skimmer - Duration: 3:10. How to Properly Hook up a Vacuum Hose to Clean your Pool - … Are there attachements that are meant to just "plug in" to the skimmer hole that I then attach a hose & vacuum part to? Hold vacuum adapter in place until any air is evacuated by pump. The hole in the bottom allows the cleaner hose to slide through the basket and connect to the skimmer … TO VACUUM WITH VACUUM ADAPTER Remove cover from top of skimmer. Old style Sylvan skimmers were commonly plumbed using black poly pipe, and some of the original sylvan skimmers were made of aluminum. Throttling may be useful if you have multiple skimmers and vacuum using a suction hose/head. if you have a two hole skimmer then you would check for things like said before as the bottom drain would only work with a skimmer float in skimmer hole & you could not vac with this in.