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5. Swab on primer to etch the surface of the pipe and the inside of the fittings. This will give the cement a better grip. Note: Some codes require the use of purple primer, but most manufacturers and codes permit the use of CPVC solvent cement without a primer.
Caution: Keep a window open for ventilation and use an organic respirator. (Consult the manufacturer for an MSDS technical data sheet.) Too many whiffs of this stuff is bad news.
6. Next, apply the
CPVC cement to the tubing and the inside of the fitting. Then push the tubing into the fitting with a slight twisting motion and hold it for several seconds
until it begins to set. Make sure the room is well ventilated. Smoking is absolutely prohibited while priming and applying cement.
Caution: Wear special solvent-proof gloves for extensive work. Too much exposure can be hazardous.
7. Support your CPVC lines every 32
to 36 in. with special CPVC supports. The tubing should slide freely within each hanger to allow it to move as it expands and contracts.
8. Leave at least 1/2-in. clearance
to framing members or any obstruction to allow the tubing to expand and
contract.
9. Bore 7/8-in. or larger holes for
1/2-in. tubing and 1-in. or larger holes for 3/4-in. tubing. If the edge of the
hole is closer than 1 in. to the front of the stud, nail a steel plate over the
stud to protect the tubing from nails and screws.
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