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.
No matter how you plan to finish your shower walls, the wallboard you use to cover the framing must be water resistant. Even tiles can leak, and moisture seeping through the wallboard into the wood behind can be disastrous.For this reason, contractors use a special kind of wallboard called greenrock to cover shower walls. As the name implies, this wallboard is colored green and is slightly thicker than ordinary drywall.You install it and finish it in the same way as you would regular drywall.ven tiles can leak, and moisture seeping through the wallboard into the wood behind can be disastrous. For this reason, contractors use a special kind of wallboard called greenrock to cover shower walls. As the name implies, this wallboard is colored green and is slightly thicker than ordinary drywall.