We designed every SnapPad product line with built-in water drainage, to help remove excess water that might gather on the top of your jacks when parked in the rain or snow. If you want to really ramp up your jack foot protection and ensure a long, healthy life for your leveling system you can combine RV SnapPads with a layer of water repellent sealant, like Flex Seal. Simply protect your ram with a paper wrap, apply the flex seal to the jack foot (top & bottom), let cure for 24 hours, and then snap on your SnapPad! Looks great and your levelers will thank you :)
Something to watch out for is avoiding silicone based lube and fluids from the vehicle (which can degrade the rubber). If your rig should ever bottom out be sure to check that your SnapPads are still attached, as they can be scraped off from the jack feet with excessive force.