We have been using a suction cup apparatus at our wash for sometime.. this has become a bit cumbersome as we have had a few recent events with the suction cups getting stuck under the chain causing shut down. Looking to move over to wiper covers - presently we are working with a manual paystation no outdoor kiosk or gate - just wondering #1 - how successful these plastic wiper covers are - #2 - time to place on #3. is there a best way to dispense these in the prop area - a stand or holder #4 - what product have you had success with and perhaps most cost effective?