A pipe offset is calculated when a pipe is altered in both the vertical and horizontal planes of a piping system. This type of occurrence is known as a "rolling offset." Following Pythagoras' theorem, the first number, or true offset, is calculated by taking the offset squared and adding the rise squared to obtain the true offset squared. Take the square root of the answer to obtain the offset.Know More
Once the true offset is known, the pipe fitter can utilize a table to find out the setback and diagonal center. Most fitting constants are 45 degrees in the plumbing trade. If the fitting angle is 60 degrees, the diagonal for the pipe is equal to the true offset times 1.155. If the fitting angle is 45 degrees, the true offset is multiplied by 1.414 to obtain the diagonal. For any fitting angle that is 22.5 degrees, the true offset is multiplied by 2.613 to get the answer for the diagonal.
The setback for fitting a pipe equals the true offset multiplied by 0.577 for a fitting angle of 60 degrees. The true offset multiplied by 1.000 equals the setback for a 45-degree fitting angle. Multiply the true offset by 2.414 for the setback for a 22.5-degree fitting angle. Using the above calculations, the true offset for a 45-degree fitting is 14.42 inches and the same number for the setback.Learn more about Plumbing
To cut PVC pipe, mark the measurement on the pipe, using masking tape as a guide, secure the pipe so that it won't move, then cut carefully along the marked line with a hacksaw or pipe cutting tool. This process takes about 10 minutes and requires a PVC pipe, masking tape, a measuring tape, a pencil, a miter box, and a hacksaw or pipe cutter. Wear protective eye wear and a dust mask to prevent injury.Full Answer >
According to PlumbingMart, water hammer can be eliminated by reducing water flow to appliances or installing AA-sized water hammer arresters on faucets and appliances. Water cushions can also be used as a temporary fix to eliminate water hammer.Full Answer >
To repair a PVC pipe leak, begin by releasing the water pressure from the pipe. There are several ways to repair a PVC pipe leak, but the simplest method is to sand the surface of the pipe and apply epoxy. Make sure to allow an hour for the curing process.Full Answer >
The three most common causes of a leaking overflow pipe are increased water pressure, an overused washer or a faulty float valve. It is important to fix a leaking overflow pipe immediately, as it can lead to structural damage to a house and mold formation.Full Answer >