KingShark2 Plus with Remote is one of the most recommended commercial pool cleaner that is made specifically for your Olympic size pools larger than 30' x 60'. Best for overnight cleaning because it has a control box with built-in digital timer and auto turn feature which allows it to move freely without getting stuck at the bottom.
Pool Vac Parts carries a replacement No. 115R Grease-Lubriplate for Hayward KingShark2 Plus pool cleaner.
