Caps beat tape

PS: The Preventive Maintenance Monthly, April, 2004

Dust caps aren't much good if you don't use 'em. And speaking of no good, duct tape is no good if you use it instead of dust caps.

Keep that in mind when you disconnect the chemical lines from the cans on your 600-GPH reverse osmosis water purification unit (ROWPU).

If you leave those lines uncovered, dirt and sand get inside the chemical connectors, making them difficult to operate, and damaging them.

Use NSN 5340-01-506-3696 and NSN 5340-01-307-5989 to get the caps and plugs for ROWPU's polymer, sodium-hex and citric acid cans and the can hoses.

Your ROWPU's chlorine cans and hoses use larger connectors. You'll need NSN 5340-01-307-4394 for the caps and NSN 5340-01-307-2679 for the plugs. By the way, these newer caps fit better than the old ones.

But whatever you do, do not use tape for a missing connector cap. It leaves a sticky residue that attracts even more dirt and sand. So play it safe and use the caps and plugs.