On my multi port valve when I put it on filter nothing comes out the return eyeball back into pool. Changed gasket last year. Do I need a whole new multi port valve for my flo pro sand filter? Never had this problem and pool filter is about 20 years old. If can answer ASAP would appreciate as my pool is full and going to local pool shop. Thank you!
Ask the Pool Guy Changed status to publish May 10, 2018