Just bought a house with in IG vinyl pool (stats below). Previous owner did not take care of it as well as should have. I already drained 30% of the water to get the CYA from 104 to 73. I took apart and cleaned out the entire filter and vaccumed all the green algae off the wall. Am going a bit crazy getting mixed messages from the pool guy who I hired just to show me how to work the equipment and the pool store who wanted to sell me a bunch of stuff. I ordered a Taylor TK 2006 test kit and am trying to get the water balanced but having trouble. Its been a tough start to home and pool ownership but I think I'm getting there, hopefully one of these days this summer i'll get to use the pool.