pH: Definition and measurement units. pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically.
sealing a cinder block wall. I just finished sealing the cinder block wall in our basement with Baer waterproofing paint. After the first coat I noticed little orange rust colored spots in one corner of the room. Nice fresh white coat of paint, little spots the size of peas on one wall.
The type of paint you choose can have a dramatic effect on your finished walls when you work with horsehair plaster. This material typically results in a rough, highly-textured wall surface. Using semi-gloss or eggshell paint draws attention to the imperfections of the plaster, making the uneven texture stand out.he type of paint you choose can have a dramatic effect on your finished walls when you work with horsehair plaster. This material typically results in a rough, highly-textured wall surface. Using semi-gloss or eggshell paint draws attention to the imperfections of the plaster, making the uneven texture stand out.