I plan to open the pool soon. Last year was a particularly difficult year, i had the water tested at the local pool store weekly and they said everything was fine. so i kept shocking the pool and the algae would die and i'd vacuum it all up and a few days later it would start again. towards the end of the summer someone suggested that phosphates were my issue. after using some sort of phosphate remover that seems to help but the water wasn't what it needed to be.

where as my neighbor had zero issues wit his pool, crystal clear water and rarely did anything, if at all (he does however have an inline chlorinater).

so im looking for some good advice on where to start and what to use.