By Marcelle Dibrell
Homeowners hire pool and spa technicians for myriad reasons but perhaps the main one is that they simply cannot get their pools as polished and pristine as the professionals can.
That is because, in addition the pool pros knowledge of proper water balance and disinfection, they also know something about specialty chemicals. They know the products that work — and the ones that are simply snake oil. And within each class of chemicals, they have their favorite brands.
Let’s face it: not all enzymes were created equal; not all sequestering agents prevent stains, and some spa purges seem to do literally nothing.