FAQ

Test Ball & Plug Accessories
FAQs
Q What size plugs would you use a Poly Lift Line on?
A Cherne offers three poly lift lines. The poly lift line with inator (Schrader) valve ttings can be used on
any plug that has an eyebolt, and also has a inator valve. The poly lift lines with gauge can be used with
any plug that has an eyebolt, and also has a removable inator valve tting.
Q Where can you nd the material safety data sheets for smoke bombs and liquid smoke?
A Material Safety Data Sheets for smoke bombs and liquid smoke can be found at Oatey.com/Cherne
Q Is there an updated list of products that can be eld scrapped?
A No. Field Scrapping products should only be dened by plumbing product manager.
Q What is the difference between a piston style pump and a Diaphragm test pump?
A All of Cherne’s hydrostatic test pumps are designed to pressure test new potable water lines. Piston style pumps
can be pressure fed or suction fed. Piston pumps cannot be run dry nor should they be used in conjunction with
chlorine. (Chlorine is frequently used when new potable water lines are being tested to avoid contamination).
Diaphragm test pumps cannot be pressure fed. However they can be used with an optional gravity feed water
tank sold by Cherne, or with a large container (like a garbage can) lled with water into which the intake hose
can be placed. Diaphragm pumps can be used with up to a 10% chlorine solution in the test water.
Q What type of oil / lubricant is used on the hydrostatic test pumps?
A Diaphragm Hydrostatic test pumps use oil in the engine, in the gear reduction unit, and in the pump
itself. 30 weight motor oil is used for the engine and pump. The gear reduction unit uses 90 weight gear
lube. *Piston Pumps only use oil in the engine. (30 weight motor oil.)
Q What is the shelf life of smoke bombs and liquid smoke?
A Smoke bombs have a one year shelf life from the date of manufacture. The shelf life on the mineral oil
used in liquid smoke is indenite.