Pool Shock: Calcium hypochlorite (chlorine) has a very high pH level, so, if you’ve shocked your pool with this inorganic compound, pH levels can spike and the calcium hardness level can increase, causing the
Discover the process of hardness testing metals and materials. Read about standards, theory, and tips & tricks. Free download of posters and application notes. From Struers, the world’s leading materialographic and metallographic experts.
see CORROSIVITY or ACIDITY of WATER.How to convert among different water hardness measures:Water with hardness of 25 ppm = 25 mg. of hardness-causing minerals per liter of water. Grains of Hardness per Gallon GPG x 17.1 = Water Hardness in PPM Total Water Hardness in mg/L / 17.1 = GPG...
If your pH is too high, your water will be alkaline, causing scale buildup in your hot tub. You'll also need to test for total alkalinity and calcium hardness: Total alkalinity should be between 80 and 120 parts per million (ppm). Calcium hardness should be between 150 and 250 ppm....
Soft water, on the other hand, is called that because it has lower concentrations of these minerals. But how do water softeners work? Groundwater acquires these hard water minerals by dissolving them from surrounding soil and rock. The industry measures water hardness in terms of grains per ...
the less detergent you need. If your glassware leaves your dishwasher etched, it's time to get rid of the popular pre-measured detergent pods and go back to filling the detergent cup manually. Have your water tested for hardness and then use the recommended amount of detergent for your resul...
Parts made from martensitic stainless steels (which are magnetic, with moderate corrosion resistance and capable of yield strengths up to about 280 ksi [1930 MPa]) are hardened at a high temperature and then tempered to secure the hardness and mechanical properties desired. Precipitation hardenable ...
Diamonds are revered for their strength and their perfect 10 rating on the Mohs scale of hardness, but that doesn't mean they should be subjected to harsh cleaning chemicals. Here are a few mistakes to avoid so you can best clean your rings at home: ...
You’ll want your pool’s alkalinity to be around 100 PPM. Calcium hardness. Calcium is always present in swimming pool water. However, when calcium levels are too high or too low, you could be looking at a range of issues such as corrosion and scaling. Aim for a calcium content of ...
To make soap at home: Mix lye with water (always add lye to water, not the other way around). Melt and combine your chosen essential oils. Slowly mix the lye solution with the oils (saponification). Add fragrances or additives if desired. ...