new liner being installed..filling with well water

[ChuckD]

Iron!
No one's mentioned iron, or other metals. I'm on a well and learned the slow hard way chlorine will react with iron and turn your water a nasty brown-green. I believe sunlight plays an important role in this wondrous process as well. Before I understood what was happening, I'd dose with Cl, stick the garden hose in before bed and let it run thru the night (vacation home pool with small leaks in the liner so needed topping off). Next day I'd pull the solar cover off and could actually watch it go from clear to opaque before my eyes. Pretty depressing when you only have the weekend to enjoy it.

IMO, before you start dosing with Cl, check your iron content and deal with it, or wind up with red-brown eyeballs like I did. My DE filter would filter it out; 22K gal filtered 24/7 would clear it in two days. Now I rarely have to add water, but if I do the hose goes into the skimmer so the water's filtered first.

C.

[waterbear]

IF there is iron in the water then you need to add a sequsterant.