Recent content by hb-

I found other posts, shown below mine, that suggest the calculations don’t change outside of 6, 8.25, 10, and 12 percent. So I think that is why. Even still the difference between 1 gal of 10% and 1 gal of 12% should be 2.2 ppm and 2.5 ppm, not 2.2 ppm and 2.8 ppm. Unless they are trying to...

I’m not sure who to notify so I’ll try here. The pool math app computes the same free chlorine parts per million for any bleach percentage 11 and above. Ex: 10%, .5 gal = 1.1ppm 11%, .5 gal = 1.4ppm 12-21% all stay 1.4ppm I found it if I double the volume and half my percentage I’ll get...

South Carolina, greenville area: Socar chemical. 25$ for 5 gallon 12.5%+. 160$ for 55 gallon 12.5%+

Here are a few pics of pressure washing the plaster. Won’t be refinishing that for a few more years. I found it interesting to see some pale green/blue copper scaling on the plaster. When full they just look like dark stains. Beginning to fill it. Some spots of the plaster were...

1970 is an estimate based on how old the previous owners daughter and husband are in the stories they told me about high school. One of the builders thought he knew who designed it but I haven’t been able to find him. There’s a single tile on the steps that says master pool. Here are some...