This trick can be explained in many ways. There are three possibilities: 1. Atomic number of titanium: 222. Number of natural isotopes of titanium: 53. Number of protons in a titanium atom: 22.

Once PVC cement is applied and set, it chemically bonds PVC pieces together, making the connection virtually permanent. The solvent in the cement breaks down the top layers of the PVC, fusing them as it evaporates. Unfortunately, this process cannot be reversed. If you need to change or repair a section where PVC cement has been used, the most viable option is to cut out the bonded section and replace it with new piping and fittings. Always ensure to measure twice and apply with care to avoid waste and extra work. In cases where a mistake is made before the cement sets, acting quickly to separate the parts may work, but this is seldom effective once curing has occurred.

Determining the size of a PVC pipe involves measuring its outer diameter (OD) and comparing it to standard sizing charts. Measure the OD with a caliper or a ruler for accuracy. It's crucial to remember that PVC pipe sizes are nominal, meaning the labeled size might not match the actual OD due to wall thickness variations. For instance, a 1-inch PVC pipe doesn’t have an exact 1-inch outer diameter. After measuring, consult a standard PVC pipe size chart, which will correlate your measurement with the nominal size of the pipe. These charts are readily available online or at hardware stores. Additionally, check the wall thickness (Schedule 40, 80, etc.), as this influences the pipe’s inner diameter and strength, affecting its application suitability.