Recomended Refill Intervals

[Phillbo]

I've heard that you should drain and refill your pool every 5 years or so... If my chemistry is balanced and the water clear and clean, is there really a need or benefit to replace it ?

In my opinion, if it aint broke, don't fix it.

Just curious what the opinions are among the experts

[AnnaK]

Over a period of 5 years you may well have already done that via topping it off after backwashing and replacing splash-out and evaporation.

Pool water is sort of like the air in bicycle tires. You don't let it out and replace with fresh every so many miles, you just add a little air when they're low.

AnnaK (by no means an expert)