15 year old 50’ x 25’ in ground pool w/vinyl liner, Sta-Rite System 3 S7M120 filter.
For first time since installing pool, dirty lines are forming between the seems of vinyl along bottom of pool on a daily basis. Chemistry is always balanced and water is crystal clear. I am cleaning out filter housing and cartridges often, but the next day I have dirty lines and have to vacuum again.
Can someone please tell me what I am doing wrong?
For first time since installing pool, dirty lines are forming between the seems of vinyl along bottom of pool on a daily basis. Chemistry is always balanced and water is crystal clear. I am cleaning out filter housing and cartridges often, but the next day I have dirty lines and have to vacuum again.
Can someone please tell me what I am doing wrong?