Hi, I've got a situation I've never seen in the 30+ years of pool ownership.
When I test the Ph, it initially looks fine (~7.6). But then, after about 30 seconds, it turns deep purple.
The Free Chlorine is about 4.4, CC is about 0.4. Water temp is 52.0 degrees F.
Should I be concerned? The Ph has been fairly stable, trending slightly upwards, so I've added a little muriatic acid the past couple of weeks, but not much (like 4 ounces at a time).
Ron
When I test the Ph, it initially looks fine (~7.6). But then, after about 30 seconds, it turns deep purple.
The Free Chlorine is about 4.4, CC is about 0.4. Water temp is 52.0 degrees F.
Should I be concerned? The Ph has been fairly stable, trending slightly upwards, so I've added a little muriatic acid the past couple of weeks, but not much (like 4 ounces at a time).
Ron