DOs

• Read the manufacturer's installation instructions and install product accordingly.
• Follow recommended safe work practices.
• Make certain that thread sealants, gasket lubricants, or fire-stop materials are compatible with Harvel® sprinkler pipe.
• If painting is desired, use only water-based latex paints.
• Keep pipe and fittings in original packaging until needed.
• If pipe and fittings are stored outdoors, cover with an opaque tarp.
• Follow proper handling procedures.
• Use tools specifically designed for plastic pipe and fittings.
• Use proper solvent cement and follow application instructions.
• Use a drop cloth to protect interior finishes.
• Cut the pipe ends square.
• Deburr and bevel the pipe end with a chamfering tool before cementing.
• Rotate the pipe a quarter turn when bottoming pipe in fitting socket.
• Avoid puddling of solvent cement in fittings and pipe.
• Make certain no solvent cement is on sprinkler head and adapter threads.
• Make certain that solvent cement does not run and plug the sprinkler head orifice.
• Follow manufacturer's recommended cure times before pressure testing.
• Fill lines slowly and bleed the air from the system before pressure testing.
• Support sprinkler head properly to prevent lift up of the head through the ceiling when activated.
• Keep threaded rod within 1/16" of the pipe or use a surge arrestor.
• Install Harvel sprinkler pipe and fittings in wet systems only.
• Use only insulation and/or glycerin/water solutions for freeze protection.
• Allow for movement due to expansion and contraction.
• Renew your Harvel sprinkler pipe and fittings installation training every two years.

DON'Ts

• Don't use edible oils such as Crisco® for gasket lubricant.
• Don't use petroleum or solvent-based paints, sealants, lubricants, or fire-stop materials.
• Don't install tape, insulated wire, or cable in direct contact with Harvel sprinkler pipe.
• Don't use glycol-based solutions as anti-freeze.
• Don't mix glycerin/water solutions in contaminated containers.
• Don't use Teflon® tape and thread sealants simultaneously.
• Don't use solvent cement thathas exceeded its shelf life or has become discolored or gelled.
• Don't allow solvent cement to plug the sprinkler head orifice.
• Don't connect rigid metal couplers to Harvel grooved adaptors.
• Don't thread, groove, or drill Harvel sprinkler pipe.
• Don't use solvent cement near sources of heat or open flame, orwhen smoking.
• Don't pressure-test until recommended cure times have passed.
• Don't pressure test with air.
• Don't cut pipe with dull or broken cutting-tool blades.
• Don't use ratchet cutters below 50°F.
• Don't use Harvel sprinkler pipe that's been stored unprotected outdoors and is faded in color.
• Don't allow threaded rod to come in contact with the pipe.
• Don't install Harvel sprinkler pipe in cold weather without allowing for expansion,
• Don't install Harvel sprinkler pipe and fittings in dry systems.