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2. Ampex 2-inch helical VTR - Wikipedia

   en.wikipedia.org/wiki/Ampex_2-inch_helical_VTR

   The 2-inch-wide video tape used was one mil (0.001 in or 0.0254 mm) thick. The VTRs were mostly used by industrial companies, educational institutions, and a few for in-flight entertainment. The capstan tape speed is 3.7 inches per second, which provided a long record time of up to five hours on large reels. The units were 100% solid state.

3. Hose reel - Wikipedia

   en.wikipedia.org/wiki/Hose_reel

   A hose reel is a cylindrical spindle made of either metal, fiberglass, or plastic and is used for storing a hose. The most common styles of hose reels are spring driven (which is self retracting), hand crank, or motor driven. Hose reels are categorized by the diameter and length of the hose they hold, the pressure rating and the

4. Backwashing (water treatment) - Wikipedia

   en.wikipedia.org/wiki/Backwashing_(water_treatment)

   Spent backwash water is either discharged without treatment to a sanitary sewer system or is treated and recycled within the plant. [4]: 22.37–22.40 Historically, backwash water was discharged directly to surface water supplies; however, direct discharge is now highly regulated through NPDES discharge permits and is often discouraged. Used ...

5. Nut shell filter - Wikipedia

   en.wikipedia.org/wiki/Nut_shell_filter

   A nut shell filter is a device to remove oil from water. In the oil and gas industry, the term walnut shell filter is common since black walnuts are most often used.. Typically nut shell filters are designed for loadings under 100 mg/L oil and 100 mg/L suspended solids and operate with 90–95% removal efficien

6. Garden hose - Wikipedia

   en.wikipedia.org/wiki/Garden_hose

   A coiled garden hose. A garden hose, hosepipe, or simply hose is a flexible tube used to convey water. There are a number of common attachments available for the end of the hose, such as sprayers and sprinklers (which are used to concentrate water at one point or to spread it over a large area). Hoses are usually attached to a hose spigot or tap.

7. Drip irrigation - Wikipedia

   en.wikipedia.org/wiki/Drip_irrigation

   Drip tape is a type of thin-walled dripper line used in drip irrigation. The first drip tape was known as "Dew Hose". [21] Drip tape duct tape is made of polyethylene and sold flat on reels. The wall thickness typically ranges from 0.1 to 0.6 mm (4 to 25 mils). Thicker-walled tapes are commonly used for permanent subsurface drip irrigation, and ...