Intex 12x30

[PoolDoc]

If you have sodium bisulfate (pH minus, etc), I'd add 1 cup measure at a time. Wait an hour between doses.

[amshdoc]

I measured my pool this morning , I have not added the ph down yet.

Ph:7.8
Chlorine: 0

So I added 4 doses of chlorine (2 cups) and turned the pump on.
What do you recommend ?

[Watermom]

You're ok with pH at 7.8. Make sure you keep some chlorine in the pool. As hot as it is lately, it will turn green FAST!