I have been noticing water loss this yr. pool has only been open a couple weeks and its been one thing after another, algae, partial drain, new filter.....now that its all swimable, water loss has been a couple inches every couple days. we live in Pa and haven't had much sun, have had rain and its been to mild to swim in last week( 60s and 70s) and yet still loosing lots of water. also 3 return lines shooting out good size bubbles and sputtering. the pressure on new filter (hayward ec65) doesn't hold steady. it goes up and down from 8/9 to 2/3 every 20 seconds or so. this is our 3rd yr with pool and there is always a problem. the pool was built in very early 80s. there appear to be no leaks around the equipment. I read air bubbles come from suction side so I checked out the skimmer with the pump off and saw hairline cracks around the lip which appears to have been sealed at one point with sealant or putty or something. I put home red dye and the cracks do appear to kinda suck Anthe dye. is this enough to cause this large water loss and large air bubbles. if so what do u seal with to find out? so tired of researching pool issues and tempted to just call someone, but don't want to fork over hundreds of $$. I will try to attach a photo. this pool is Soooo time consuming and no time to deal with it. but adding water every 2-3couple days is not working for us either. please any advice would be appreciated!!