Aug 2, 2016 - Treating a green pool – Sometimes it has to get worse before it gets better What Horizontal Cracking Means in your Swimming Pool Tile Line . Do you see air bubbles shooting out of the return jets in your swimming pool? It's a common problem (especially when you open your pool in the spring). For optimum pool pump operation, the source of the leak must be identified and Bubbles coming out at return jet and when I open the lid to take out skimmer basket I had a complete renovation done this spring, new tile, coping & plaster, . This video explains how unwanted air bubbles are introduced into a swimming pool and how to correct the problem. Oct 12, 2011 - Occasionally, however, pool water chemistry suffers and water becomes . products: pool owners who are cleaning the tiles near the water line of an . can cause bubbles to be generated from the force of the pool's return jet, . Sep 19, 2015 - Unfortunately, same tiny bubbles coming out of the return jets. . Filled the pool up to almost top of tile line with only a tiny crack now going into . May 20, 2009 - When we have our pool set to cleaning cycle (suction from pool and return . The spa bubbles come from a return, not a jet. . Our spa level is up thanks to the return water but the pool level is below the tile and down into the . Make 1 tile pools on the floor above, add a bubble jet in the bottom, add wall height windows on all sides, lights set to your colour of choice.