i use well water to add water to my pool. i have a water softener but when adding fill water, i use the outside spicket that is not attached to the water softener. my question is....is that okay to add water from the non-filtered spicket or should i be adding from the water that is attached to the water softener? in the past i have had iron and copper in the water. i do also use a heater for the pool. thanks