New pool owner here. Just tested my water for the first time today. Here are the results:
CH 470 ( source water 180 )
PH 7.2-7.5 ( source water 7.5 - 7.8 )
After reading from the Pool School it seems most of the readings are within parameters with the obvious exceptions being CYA & CH. So if I understand correctly I need to drain & replace water. Seems to me I should drain half the pool & replace. Does this sound right?
But how to go about it? When I backwash the filter, I'm obviously replacing some water, but I need to drain much more. Specifically below the skimmer...
There is a stop on the multi-port switch just before the filter that says "drain". Will this setting bypass the skimmer? I'm looking for whatever would drain from the main drain, correct?
Thanks in advance,